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seniorweb.nl

seniorweb.nl is SSL secured

Free website and domain report on seniorweb.nl

Last Updated: 8th October, 2020 Update Now
Overview

Snoop Summary for seniorweb.nl

This is a free and comprehensive report about seniorweb.nl. The domain seniorweb.nl is currently hosted on a server located in Amsterdam, North Holland in Netherlands with the IP address 40.114.228.161, where EUR is the local currency and the local language is Dutch. Seniorweb.nl has the potential to be earning an estimated $5 USD per day from advertising revenue. If seniorweb.nl was to be sold it would possibly be worth $3,921 USD (based on the daily revenue potential of the website over a 24 month period). Seniorweb.nl is quite popular with an estimated 1,880 daily unique visitors. This report was last updated 8th October, 2020.

About seniorweb.nl

Site Preview: seniorweb.nl seniorweb.nl
Title: SeniorWeb
Description: SeniorWeb maakt de digitale wereld leuker en makkelijker. Word lid en profiteer van onze begrijpelijke tips en persoonlijke computerhulp.
Keywords and Tags: portal sites
Related Terms: computerhulp, lid kirara, persoonlijke diensten, wereld
Fav Icon:
Age: Over 27 years old
Domain Created: 17th February, 1997
Domain Updated: 26th November, 2018
Domain Expires:
Review

Snoop Score

3/5 (Great!)

Valuation

$3,921 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 372,271
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 1,880
Monthly Visitors: 57,221
Yearly Visitors: 686,200
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $5 USD
Monthly Revenue: $163 USD
Yearly Revenue: $1,956 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: seniorweb.nl 12
Domain Name: seniorweb 9
Extension (TLD): nl 2

Page Speed Analysis

Average Load Time: 2.68 seconds
Load Time Comparison: Faster than 20% of sites

PageSpeed Insights

Avg. (All Categories) 79
Performance 87
Accessibility 85
Best Practices 79
SEO 82
Progressive Web App 63
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.seniorweb.nl/
Updated: 8th October, 2020

2.81 seconds
First Contentful Paint (FCP)
33%
44%
23%

0.00 seconds
First Input Delay (FID)
99%
0%
1%

Simulate loading on desktop
87

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for seniorweb.nl. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.9 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 0.9 s
The time taken for the page to become fully interactive.
Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.036
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 0.9 s
The time taken for the page's main thread to be quiet enough to handle input.
Max Potential First Input Delay — 40 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 0.9 s
The time taken for the primary content of the page to be rendered.
Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive seniorweb.nl as laggy when the latency is higher than 0.05 seconds.
Network Requests
Below is a list of network requests that were made during page load.
URL Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://seniorweb.nl/
0
309.89799997769
217
0
301
text/html
https://seniorweb.nl/
310.38599996828
803.74000000302
798
0
301
text/html
https://www.seniorweb.nl/
804.17599994689
1601.3419999508
12906
49464
200
text/html
Document
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
1616.9450000161
2041.6010000044
59630
59172
200
text/css
Stylesheet
https://www.seniorweb.nl/CSS/WebChat?v=ZZslhYEmiHWjGgJ7MUo2Ysk8DuJlEiHNnAmUCaB_6_g1
1617.1249999898
1739.2759999493
1811
3714
200
text/css
Stylesheet
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
1617.2719999449
1988.7209999142
60006
358846
200
text/css
Stylesheet
https://www.seniorweb.nl/Content/Images/cookie.png
2047.4029999459
2451.492000022
3937
3325
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/smartphone/nl-alert%20op%20mobiel.png
2047.6649999619
2288.6849999195
17567
16942
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/nieuws/n41-play-pass.png?n=946
2047.8550000116
2281.7939999513
13895
13231
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/apps/sticker-whatsapp-thumb.png
2048.0309999548
2293.2119999314
27161
26497
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/wifinetwerk%20instellen.png
2048.1499999296
2266.4549999172
9843
9180
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
2048.240999924
2277.3060000036
18823
18158
200
image/jpeg
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
2048.3469999162
2276.1209999444
19510
18845
200
image/jpeg
Image
https://www.google.com/jsapi
1991.4899999276
2011.2579999259
596
0
301
text/html
https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
2023.2449999312
2029.9210000085
33738
92629
200
text/javascript
Script
https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.4/underscore-min.js
2037.760999985
2054.9669999164
5188
13450
200
application/javascript
Script
https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.2.3/backbone-min.js
2043.1329999119
2067.0159999281
7819
23097
200
application/javascript
Script
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
2046.2519999128
2502.6669999352
27371
26899
200
application/javascript
Script
https://www.seniorweb.nl/JS/WebChat?v=lRFOA15zjduJz1eATwDxXo_iZ3qCcNBwN_mfJL1iVLM1
2046.5939999558
2155.2329999395
2038
2660
200
text/javascript
Script
https://www.seniorweb.nl/JS/Main?v=66Waq7F1D04JK7PDLTfUhmE10jQTCOrQiVln0j2BopM1
2046.9809999922
2624.6089999331
55767
137508
200
text/javascript
Script
https://www.seniorweb.nl/JS/Home?v=U4nTXLF15XG25iBxkdM-HZadC8SFat3yvVPAR9ITojI1
2047.2179999342
2437.7519999398
1730
2205
200
text/javascript
Script
https://dev.visualwebsiteoptimizer.com/j.php?a=35572&u=https%3A%2F%2Fwww.seniorweb.nl%2F&r=0.9577314096857816
2048.4629999846
2065.5419999966
1675
2929
200
application/javascript
Script
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
2048.6909999745
2102.9639999615
73426
365077
200
application/javascript
Script
https://www.gstatic.com/charts/loader.js
2011.4850000245
2016.8589999666
20609
65905
200
text/javascript
Script
https://www.seniorweb.nl/content/images/logo.svg
2050.6049999967
3081.2999999616
2826
4502
200
image/svg+xml
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/lidmaatschap/afbeeldingen/facebook-lidworden_753x320_3.jpg?n=8876
2057.8390000155
2290.3449999867
48229
47603
200
image/jpeg
Image
https://www.seniorweb.nl/Content/Images/social-icons-bg-footer.png
2061.8580000009
2454.0559999878
2178
1566
200
image/png
Image
https://www.seniorweb.nl/Content/Fonts/titilliumweb-regular.woff2
2062.8469999647
3740.7639999874
21994
21368
200
application/font-woff2
Font
https://www.seniorweb.nl/Content/Fonts/titilliumweb-semibold.woff2
2063.0539999111
4930.5329999188
21946
21320
200
application/font-woff2
Font
https://www.seniorweb.nl/Content/Fonts/icons.woff
2063.3699999889
2558.3619999234
48893
48268
200
application/font-woff
Font
https://www.seniorweb.nl/Content/Fonts/journal.woff2
2064.3579999451
4256.3279999886
53899
53272
200
application/font-woff2
Font
https://dev.visualwebsiteoptimizer.com/v.gif?cd=0&a=35572&d=seniorweb.nl&u=DCAC3D6ECA726DDBFA8EE482CC40BF4B1&h=f1ddddc401fe55d1b8c5cda629c057b4&t=false&r=0.8057431055418198
2125.7709999336
2140.7909999834
364
0
200
application/javascript
Image
https://static.hotjar.com/c/hotjar-80034.js?sv=7
2183.6660000263
2209.9409999792
2171
3525
200
application/javascript
Script
https://www.google-analytics.com/analytics.js
2188.7939999579
2192.3180000158
19293
46489
200
text/javascript
Script
https://userscoring.io/lib/?uid=US-SW3238447D54D
2200.5399999907
5197.7160000242
22933
80992
200
application/javascript
Script
https://www.google-analytics.com/plugins/ua/ec.js
2213.2569999667
2215.8089999575
1916
2779
200
text/javascript
Script
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=699813409&t=pageview&_s=1&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=YEBAAEAL~&cid=2039416368.1602151607&tid=UA-1572994-1&_gid=1082509623.1602151607&gtm=2wg9u15VGWMR&cd2=&cd17=1602151607317.u8bjxiklh&cd18=2020-10-08T03%3A06%3A47.317-07%3A00&cd19=Nee&cd20=Nee&cd1=2039416368.1602151607&z=94445023
2232.4859999353
2235.5830000015
614
35
200
image/gif
Image
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=699813409&t=pageview&_s=1&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=YEDAAEAL~&cid=2039416368.1602151607&tid=UA-1572994-21&_gid=1082509623.1602151607&gtm=2wg9u15VGWMR&cd2=1602151607322.1bo99uvk&cd1=2039416368.1602151607&cd3=2020-10-08T03%3A06%3A47.322-07%3A00&z=115089236
2232.6719999546
2235.2109999629
614
35
200
image/gif
Image
https://script.hotjar.com/modules.8b5df1db44ffdcf36821.js
2236.2260000082
2299.1380000021
72117
363867
200
application/javascript
Script
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=699813409&t=event&ni=1&_s=1&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=800x600&vp=1350x940&je=0&ec=Functioneel&ea=Enhanced%20Ecommerce&el=promotionView&_u=aGDAAEAL~&cid=2039416368.1602151607&tid=UA-1572994-1&_gid=1082509623.1602151607&gtm=2wg9u15VGWMR&cd2=&cd17=1602151607335.jv2dt5z&cd18=2020-10-08T03%3A06%3A47.335-07%3A00&cd19=Nee&cd20=Nee&cd1=2039416368.1602151607&promo1id=00011&promo1nm=%20bottom%20visual%201&promo1cr=Vaccinatie%20tegen%20pneumokokken&promo1ps=1&z=107969430
2242.6579999737
2246.11800001
614
35
200
image/gif
Image
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=699813409&t=event&ni=1&_s=2&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=800x600&vp=1350x940&je=0&ec=Functioneel&ea=Enhanced%20Ecommerce&el=promotionView&_u=aGDAAEAL~&cid=2039416368.1602151607&tid=UA-1572994-21&_gid=1082509623.1602151607&gtm=2wg9u15VGWMR&cd2=1602151607337.gbro1n2k&cd1=2039416368.1602151607&cd3=2020-10-08T03%3A06%3A47.337-07%3A00&z=1691868316
2243.2039999403
2245.6740000052
614
35
200
image/gif
Image
https://www.seniorweb.nl/webchat/getchatstats
2661.4129999653
2770.1999999117
761
15
200
application/json
XHR
https://www.seniorweb.nl/getclient
2674.8969999608
2895.9859999595
951
242
200
application/json
XHR
https://vars.hotjar.com/box-469cf41adb11dc78be68c1ae7f9457a4.html
2733.9059999213
2755.3699999116
1352
2063
200
text/html
Document
https://in.hotjar.com/api/v2/client/sites/80034/visit-data?sv=7
2778.6339999875
2884.5049999654
455
195
200
application/json
XHR
https://www.seniorweb.nl/webchat/getchatstats
3663.0799999693
3804.3230000185
761
15
200
application/json
XHR
https://www.seniorweb.nl/webchat/getchatstats
4662.5989999156
4884.8529999377
761
15
200
application/json
XHR
https://userscoring.io/api/customers/1/profile-groups/sw_main/profiles/3acv36sl7wo7wyvhgs7tbs
5623.2819999568
6546.5579999145
492
0
201
XHR
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=699813409&t=event&ni=1&_s=3&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=800x600&vp=1350x940&je=0&ec=UserScoring&ea=Profile&el=Update&_u=aGDAAEAL~&cid=2039416368.1602151607&tid=UA-1572994-21&_gid=1082509623.1602151607&gtm=2wg9u15VGWMR&cd2=1602151607337.gbro1n2k&cd18=&cd1=2039416368.1602151607&cd3=2020-10-08T03%3A06%3A47.337-07%3A00&cd4=1&cd5=&cd6=&cd7=&cd8=&cd9=&cd10=&cd11=0&z=223596957
5623.5909999814
5626.7009999137
614
35
200
image/gif
Image
https://www.seniorweb.nl/webchat/getchatstats
5662.5639999984
5910.4379999917
761
15
200
application/json
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1629.518
8.094
1641.304
5.575
2016.11
20.234
2075.637
40.288
2116.318
21.23
2151.391
18.665
2171.073
24.544
2196.349
34.166
2234.101
24.131
2262.289
5.698
2337.197
35.846
2585.956
26.075
2656.972
52.039
2783.361
7.686
2799.366
9.164
3768.9
22.063
4286.315
20.895
4958.669
28.579
5227.91
15.359
5642.452
6.525
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Opportunities

Properly size images — Potential savings of 77 KiB
Images can slow down the page's load time. Seniorweb.nl should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/apps/sticker-whatsapp-thumb.png
26497
22257
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
18845
16403
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/smartphone/nl-alert%20op%20mobiel.png
16942
14231
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/nieuws/n41-play-pass.png?n=946
13231
11114
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/wifinetwerk%20instellen.png
9180
7711
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
18158
7395
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Seniorweb.nl should consider lazy-loading offscreen and hidden images.
Minify CSS — Potential savings of 6 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Seniorweb.nl should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
60006
6276
Minify JavaScript — Potential savings of 7 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Seniorweb.nl should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
73426
7606
Remove unused JavaScript — Potential savings of 131 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.seniorweb.nl/JS/Main?v=66Waq7F1D04JK7PDLTfUhmE10jQTCOrQiVln0j2BopM1
55767
42977
https://www.google.com/jsapi
65905
34815
https://script.hotjar.com/modules.8b5df1db44ffdcf36821.js
72117
33492
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
27371
22551
Efficiently encode images — Potential savings of 6 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
18158
6487
Serve images in next-gen formats — Potential savings of 62 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/apps/sticker-whatsapp-thumb.png
26497
16603
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/lidmaatschap/afbeeldingen/facebook-lidworden_753x320_3.jpg?n=8876
47603
15181
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
18158
11436
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
18845
11089
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/smartphone/nl-alert%20op%20mobiel.png
16942
9430
Enable text compression — Potential savings of 69 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
59172
50181
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
26899
20884
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://userscoring.io/lib/?uid=US-SW3238447D54D
274

Diagnostics

Avoids enormous network payloads — Total size was 785 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
73426
https://script.hotjar.com/modules.8b5df1db44ffdcf36821.js
72117
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
60006
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
59630
https://www.seniorweb.nl/JS/Main?v=66Waq7F1D04JK7PDLTfUhmE10jQTCOrQiVln0j2BopM1
55767
https://www.seniorweb.nl/Content/Fonts/journal.woff2
53899
https://www.seniorweb.nl/Content/Fonts/icons.woff
48893
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/lidmaatschap/afbeeldingen/facebook-lidworden_753x320_3.jpg?n=8876
48229
https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
33738
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
27371
Avoids an excessive DOM size — 588 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
588
Maximum DOM Depth
SHOW DETAILS
8
Maximum Child Elements
SHOW DETAILS
28
Avoid chaining critical requests — 14 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Seniorweb.nl should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.1 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.seniorweb.nl/
208.019
10.37
3.896
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
89.321
69.321
10.94
https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
55.77
43.815
1.907
Unattributable
54.116
1.171
0.185
Minimizes main-thread work — 0.6 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
219.838
Style & Layout
129.207
Other
101.338
Rendering
44.27
Script Parsing & Compilation
34.33
Parse HTML & CSS
32.481
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 50 requests • 785 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
50
804184
Script
15
347791
Image
16
167403
Font
4
146732
Stylesheet
3
121447
Document
2
14258
Other
10
6553
Media
0
0
Third-party
23
354215
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
76095
0
SHOW DETAILS
73426
0
SHOW DETAILS
54347
0
SHOW DETAILS
24279
0
SHOW DETAILS
13007
0
SHOW DETAILS
2039
0
SHOW DETAILS
596
0
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
a
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
SeniorWeb, de computerhulp voor u! Online gemak en vermaak Haal met internet d…
0.024593030096569
Online computercursussen Computerles in de buurt Persoonlijke computerhulp …
0.0053473766584157
Word nu gratis lid van SeniorWeb
0.0019531768428819
Webwinkel
0.00077164650396954
Lidmaatschap
0.00072884980943875
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Speed Index — 2.0 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 1.6 s
The timing of the largest text or image that is painted.

Opportunities

Eliminate render-blocking resources — Potential savings of 280 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Seniorweb.nl should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
59630
310
https://www.seniorweb.nl/CSS/WebChat?v=ZZslhYEmiHWjGgJ7MUo2Ysk8DuJlEiHNnAmUCaB_6_g1
1811
70
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
60006
270
Remove unused CSS — Potential savings of 112 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Seniorweb.nl should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
59630
58306
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
60006
56472
Avoid multiple page redirects — Potential savings of 340 ms
Redirects can cause additional delays before the page can begin loading. Seniorweb.nl should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://seniorweb.nl/
190
https://seniorweb.nl/
150
https://www.seniorweb.nl/
0
Preload key requests — Potential savings of 550 ms
Key requests can be preloaded by using '<link rel=preload>'. Seniorweb.nl should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
URL Potential Savings (Ms)
https://www.seniorweb.nl/Content/Fonts/titilliumweb-regular.woff2
550
https://www.seniorweb.nl/Content/Fonts/titilliumweb-semibold.woff2
550
https://www.seniorweb.nl/Content/Fonts/journal.woff2
430
https://www.seniorweb.nl/Content/Fonts/icons.woff
420

Opportunities

Reduce initial server response time — Root document took 800 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.seniorweb.nl/
798.163

Diagnostics

Serve static assets with an efficient cache policy — 22 resources found
Seniorweb.nl can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
0
59630
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/lidmaatschap/afbeeldingen/facebook-lidworden_753x320_3.jpg?n=8876
0
48229
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
0
27371
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/apps/sticker-whatsapp-thumb.png
0
27161
https://userscoring.io/lib/?uid=US-SW3238447D54D
0
22933
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
0
19510
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
0
18823
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/smartphone/nl-alert%20op%20mobiel.png
0
17567
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/nieuws/n41-play-pass.png?n=946
0
13895
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/wifinetwerk%20instellen.png
0
9843
https://dev.visualwebsiteoptimizer.com/j.php?a=35572&u=https%3A%2F%2Fwww.seniorweb.nl%2F&r=0.9577314096857816
0
1675
https://dev.visualwebsiteoptimizer.com/v.gif?cd=0&a=35572&d=seniorweb.nl&u=DCAC3D6ECA726DDBFA8EE482CC40BF4B1&h=f1ddddc401fe55d1b8c5cda629c057b4&t=false&r=0.8057431055418198
0
364
https://static.hotjar.com/c/hotjar-80034.js?sv=7
60000
2171
https://www.google-analytics.com/plugins/ua/ec.js
3600000
1916
https://www.google-analytics.com/analytics.js
7200000
19293
https://www.seniorweb.nl/Content/Fonts/journal.woff2
2592000000
53899
https://www.seniorweb.nl/Content/Fonts/icons.woff
2592000000
48893
https://www.seniorweb.nl/Content/Fonts/titilliumweb-regular.woff2
2592000000
21994
https://www.seniorweb.nl/Content/Fonts/titilliumweb-semibold.woff2
2592000000
21946
https://www.seniorweb.nl/Content/Images/cookie.png
2592000000
3937
https://www.seniorweb.nl/content/images/logo.svg
2592000000
2826
https://www.seniorweb.nl/Content/Images/social-icons-bg-footer.png
2592000000
2178
85

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of seniorweb.nl. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Seniorweb.nl may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
Seniorweb.nl may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
Niet akkoord
Zoeken
Tips & Uitleg
Cursussen
PCHulp
Clubs
Webwinkel
Lidmaatschap
Ontdek het lidmaatschap
Online gemak en vermaak
Digitaal Nalaten
Phishingchecker
Handige links
Fotowedstrijd
Computerwoordenboek
Advertorial
Loekie Ruissen
SeniorWeb-vrijwilliger
Meld u nu aan voor de gratis SeniorWeb Nieuwsbrief en ontvang wekelijks het laa…
Aanmelden

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
Aanmelden nieuwsbrief
Volg ons op Facebook
Volg ons op Twitter
Volg ons op Instagram
Volg ons op YouTube

Names and labels

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
79

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that seniorweb.nl should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.9.1
Backbone
1.2.3
Underscore
1.4.4
jQuery Mobile
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.2.3/backbone-min.js
https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.2.3/backbone-min.map
https://static.hotjar.com/c/hotjar-80034.js?sv=7
https://static.hotjar.com/c/hotjar.js.map

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://seniorweb.nl/
Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
4
Medium

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
URL Description
https://www.seniorweb.nl/JS/Home?v=U4nTXLF15XG25iBxkdM-HZadC8SFat3yvVPAR9ITojI1
TypeError: Cannot read property 'engagements' of null at Object.GetFavDevice (https://www.seniorweb.nl/JS/Home?v=U4nTXLF15XG25iBxkdM-HZadC8SFat3yvVPAR9ITojI1:1:1044) at HTMLDocument.<anonymous> (https://www.seniorweb.nl/JS/Home?v=U4nTXLF15XG25iBxkdM-HZadC8SFat3yvVPAR9ITojI1:1:47) at c (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js:3:7857) at Object.fireWith [as resolveWith] (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js:3:8658) at Function.ready (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js:3:3266) at HTMLDocument.H (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js:3:695)
82

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for seniorweb.nl. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of seniorweb.nl on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Content Best Practices

Image elements do not have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Failing Elements
img

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
63

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of seniorweb.nl. This includes details about web app manifests.

Fast and reliable

Page load is fast enough on mobile networks
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.

Installable

Web app manifest meets the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Sets a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of seniorweb.nl on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Fast and reliable

Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://seniorweb.nl/
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.

PWA Optimized

Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 75
Performance 48
Accessibility 91
Best Practices 79
SEO 91
Progressive Web App 64
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.seniorweb.nl/
Updated: 8th October, 2020

2.11 seconds
First Contentful Paint (FCP)
43%
44%
13%

0.01 seconds
First Input Delay (FID)
94%
5%
1%

Simulate loading on mobile
48

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for seniorweb.nl. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.013
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Opportunities

Properly size images — Potential savings of 7 KiB
Images can slow down the page's load time. Seniorweb.nl should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
18845
7158
Minify JavaScript — Potential savings of 7 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Seniorweb.nl should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
73451
7608
Efficiently encode images — Potential savings of 13 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/diversen/carousel/130x170%20clubs.jpg?n=6368
15673
7035
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
18158
6487
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://userscoring.io/lib/?uid=US-SW3238447D54D
270

Diagnostics

Avoids enormous network payloads — Total size was 801 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
73451
https://script.hotjar.com/modules.8b5df1db44ffdcf36821.js
72117
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
60006
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
59630
https://www.seniorweb.nl/JS/Main?v=66Waq7F1D04JK7PDLTfUhmE10jQTCOrQiVln0j2BopM1
55767
https://www.seniorweb.nl/Content/Fonts/journal.woff2
53899
https://www.seniorweb.nl/Content/Fonts/icons.woff
48893
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/lidmaatschap/afbeeldingen/facebook-lidworden_753x320_3.jpg?n=8876
48229
https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
33738
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
27371
Avoids an excessive DOM size — 594 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
594
Maximum DOM Depth
SHOW DETAILS
8
Maximum Child Elements
SHOW DETAILS
29
Avoid chaining critical requests — 14 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Seniorweb.nl should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 1.2 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.seniorweb.nl/
964.296
51.572
16.052
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
459.616
369.788
43.508
https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
273.848
214.84
8.412
Unattributable
246.768
5.436
0.908
https://script.hotjar.com/modules.8b5df1db44ffdcf36821.js
229.432
184.552
23.392
https://www.google-analytics.com/analytics.js
143.072
133.556
4.864
https://www.seniorweb.nl/JS/Main?v=66Waq7F1D04JK7PDLTfUhmE10jQTCOrQiVln0j2BopM1
106.884
96.244
10.64
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
99.228
0
0
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 51 requests • 801 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
51
820505
Script
15
347519
Image
17
183919
Font
4
146732
Stylesheet
3
121447
Document
2
14419
Other
10
6469
Media
0
0
Third-party
23
354132
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
SeniorWeb maakt gebruik van cookies om deze website beter te laten werken en om…
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
Akkoord Niet akkoord Klik hier voor meer uitleg
0.0097548375841801
Menu Zoek
0.0022184490932183
Zoek
0.00040315355229994
Menu
0.00035565612446834
Klik hier voor meer uitleg
0.00023269314236111
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 11 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
6099
204
https://script.hotjar.com/modules.8b5df1db44ffdcf36821.js
8610
180
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
9360
154
https://www.google-analytics.com/analytics.js
7230
141
https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
4470
140
https://www.seniorweb.nl/
1961
113
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
5100
99
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
6000
99
https://userscoring.io/lib/?uid=US-SW3238447D54D
7371
76
https://www.seniorweb.nl/
2074
62
https://www.seniorweb.nl/
2136
59
Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Network Requests
Below is a list of network requests that were made during page load.
URL Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://seniorweb.nl/
0
98.272999748588
204
0
301
text/html
https://seniorweb.nl/
98.732999991626
294.44199986756
758
0
301
text/html
https://www.seniorweb.nl/
295.06100015715
1329.3530000374
13067
50028
200
text/html
Document
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
1348.7089998089
1791.1789999343
59630
59172
200
text/css
Stylesheet
https://www.seniorweb.nl/CSS/WebChat?v=ZZslhYEmiHWjGgJ7MUo2Ysk8DuJlEiHNnAmUCaB_6_g1
1348.9040001296
1465.0459997356
1811
3714
200
text/css
Stylesheet
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
1349.05599989
1496.4370001107
60006
358846
200
text/css
Stylesheet
https://www.seniorweb.nl/Content/Images/cookie.png
1796.6419998556
2435.873999726
3937
3325
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/smartphone/nl-alert%20op%20mobiel.png
1796.980000101
1833.6490001529
17567
16942
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/nieuws/n41-play-pass.png?n=946
1797.2780000418
1817.7299997769
13895
13231
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/apps/sticker-whatsapp-thumb.png
1797.5539998151
1819.8899999261
27161
26497
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/wifinetwerk%20instellen.png
1797.7970000356
1833.1959997304
9843
9180
200
image/png
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
1797.9890001006
1838.5449997149
18823
18158
200
image/jpeg
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/diversen/carousel/130x170%20clubs.jpg?n=6368
1798.1569999829
1832.5359998271
16299
15673
200
image/jpeg
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
1798.3209998347
1834.007000085
19510
18845
200
image/jpeg
Image
https://www.google.com/jsapi
1498.6740001477
1523.1900000945
569
0
301
text/html
https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
1535.145000089
1540.7289997675
33738
92629
200
text/javascript
Script
https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.4.4/underscore-min.js
1548.1400000863
1565.9730001353
5188
13450
200
application/javascript
Script
https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.2.3/backbone-min.js
1567.5379997119
1585.3729997762
7819
23097
200
application/javascript
Script
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
1587.2059999965
1962.4139997177
27371
26899
200
application/javascript
Script
https://www.seniorweb.nl/JS/WebChat?v=lRFOA15zjduJz1eATwDxXo_iZ3qCcNBwN_mfJL1iVLM1
1792.6349998452
1896.7169998214
2038
2660
200
text/javascript
Script
https://www.seniorweb.nl/JS/Main?v=66Waq7F1D04JK7PDLTfUhmE10jQTCOrQiVln0j2BopM1
1796.0569998249
1925.6989997812
55767
137508
200
text/javascript
Script
https://www.seniorweb.nl/JS/Home?v=U4nTXLF15XG25iBxkdM-HZadC8SFat3yvVPAR9ITojI1
1796.2650000118
1921.2299999781
1730
2205
200
text/javascript
Script
https://dev.visualwebsiteoptimizer.com/j.php?a=35572&u=https%3A%2F%2Fwww.seniorweb.nl%2F&r=0.16028429989408122
1798.5299997963
1816.6359998286
1718
2930
200
application/javascript
Script
https://www.googletagmanager.com/gtm.js?id=GTM-5VGWMR
1798.6849998124
1839.7429999895
73451
365077
200
application/javascript
Script
https://www.gstatic.com/charts/loader.js
1523.546999786
1529.2650000192
20565
65905
200
text/javascript
Script
https://www.seniorweb.nl/content/images/logo.svg
1802.896999754
2420.6240000203
2826
4502
200
image/svg+xml
Image
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/lidmaatschap/afbeeldingen/facebook-lidworden_753x320_3.jpg?n=8876
1812.8479998559
1845.0909997337
48229
47603
200
image/jpeg
Image
https://www.seniorweb.nl/Content/Images/social-icons-bg-footer.png
1818.0700000376
1934.1159998439
2178
1566
200
image/png
Image
https://www.seniorweb.nl/Content/Fonts/titilliumweb-regular.woff2
1818.9690001309
3532.2329998016
21994
21368
200
application/font-woff2
Font
https://www.seniorweb.nl/Content/Fonts/titilliumweb-semibold.woff2
1819.2630000412
3957.8869999386
21946
21320
200
application/font-woff2
Font
https://www.seniorweb.nl/Content/Fonts/icons.woff
1819.5500001311
3034.0769998729
48893
48268
200
application/font-woff
Font
https://www.seniorweb.nl/Content/Fonts/journal.woff2
1821.5100001544
2832.8399998136
53899
53272
200
application/font-woff2
Font
https://dev.visualwebsiteoptimizer.com/v.gif?cd=0&a=35572&d=seniorweb.nl&u=D40995ABC5EEAF7CF0981C322E27AD745&h=bb85fdd9301410e5d91af287b68b78bb&t=false&r=0.3688547950991514
1913.7789998204
1929.7869997099
579
0
200
application/javascript
Image
https://static.hotjar.com/c/hotjar-80034.js?sv=7
1995.2090000734
2016.6659997776
2169
3525
200
application/javascript
Script
https://www.google-analytics.com/analytics.js
2002.5599999353
2006.9359997287
19293
46489
200
text/javascript
Script
https://userscoring.io/lib/?uid=US-SW3238447D54D
2020.0350000523
2877.9699997976
22639
80992
200
application/javascript
Script
https://www.seniorweb.nl/webchat/getchatstats
2080.0850000232
2194.8290001601
761
15
200
application/json
XHR
https://www.seniorweb.nl/getclient
2097.3939998075
2261.4409998059
948
245
200
application/json
XHR
https://script.hotjar.com/modules.8b5df1db44ffdcf36821.js
2125.5939998664
2195.9850001149
72117
363867
200
application/javascript
Script
https://www.google-analytics.com/plugins/ua/ec.js
2132.2119999677
2135.0010000169
1916
2779
200
text/javascript
Script
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=451634144&t=pageview&_s=1&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=360x640&vp=360x640&je=0&_u=YEBAAEAL~&cid=1662745118.1602151626&tid=UA-1572994-1&_gid=369565538.1602151626&gtm=2wg9u15VGWMR&cd2=&cd17=1602151625996.4qvx6rxr&cd18=2020-10-08T03%3A07%3A05.996-07%3A00&cd19=Nee&cd20=Nee&cd1=1662745118.1602151626&z=1225660424
2161.3159999251
2163.8090000488
614
35
200
image/gif
Image
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=451634144&t=pageview&_s=1&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=360x640&vp=360x640&je=0&_u=YEDAAEAL~&cid=1662745118.1602151626&tid=UA-1572994-21&_gid=369565538.1602151626&gtm=2wg9u15VGWMR&cd2=1602151626003.v4hsqap&cd1=1662745118.1602151626&cd3=2020-10-08T03%3A07%3A06.03-07%3A00&z=2010371906
2161.5160000511
2164.2169998959
614
35
200
image/gif
Image
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=451634144&t=event&ni=1&_s=1&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=360x640&vp=360x640&je=0&ec=Functioneel&ea=Enhanced%20Ecommerce&el=promotionView&_u=aGDAAEAL~&cid=1662745118.1602151626&tid=UA-1572994-1&_gid=369565538.1602151626&gtm=2wg9u15VGWMR&cd2=&cd17=1602151626022.d9gmqixb&cd18=2020-10-08T03%3A07%3A06.22-07%3A00&cd19=Nee&cd20=Nee&cd1=1662745118.1602151626&promo1id=00011&promo1nm=%20bottom%20visual%201&promo1cr=Vaccinatie%20tegen%20pneumokokken&promo1ps=1&promo2id=00012&promo2nm=%20bottom%20visual%202&promo2cr=Praat%20mee%20in%20de%20clubs&promo2ps=2&z=1564463303
2170.6449999474
2173.3760000207
615
35
200
image/gif
Image
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=451634144&t=event&ni=1&_s=2&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=360x640&vp=360x640&je=0&ec=Functioneel&ea=Enhanced%20Ecommerce&el=promotionView&_u=aGDAAEAL~&cid=1662745118.1602151626&tid=UA-1572994-21&_gid=369565538.1602151626&gtm=2wg9u15VGWMR&cd2=1602151626025.ouzi8s16&cd1=1662745118.1602151626&cd3=2020-10-08T03%3A07%3A06.25-07%3A00&z=113604540
2170.8209998906
2173.8419998437
614
35
200
image/gif
Image
https://vars.hotjar.com/box-469cf41adb11dc78be68c1ae7f9457a4.html
2179.4730001129
2200.4769998603
1352
2063
200
text/html
Document
https://in.hotjar.com/api/v2/client/sites/80034/visit-data?sv=7
2274.5920000598
2382.1729999036
454
199
200
application/json
XHR
https://www.seniorweb.nl/webchat/getchatstats
3081.8369998597
3236.8589998223
761
15
200
application/json
XHR
https://userscoring.io/api/customers/1/profile-groups/sw_main/profiles/5xyk16r6vumkhw4aowhna
3307.8939998522
4282.5929997489
492
0
201
XHR
https://www.google-analytics.com/collect?v=1&_v=j86&aip=1&a=451634144&t=event&ni=1&_s=3&dl=https%3A%2F%2Fwww.seniorweb.nl%2F&ul=en-us&de=UTF-8&dt=SeniorWeb%2C%20de%20computerhulp%20voor%20u&sd=24-bit&sr=360x640&vp=360x640&je=0&ec=UserScoring&ea=Profile&el=Update&_u=aGDAAEAL~&cid=1662745118.1602151626&tid=UA-1572994-21&_gid=369565538.1602151626&gtm=2wg9u15VGWMR&cd2=1602151626025.ouzi8s16&cd18=&cd1=1662745118.1602151626&cd3=2020-10-08T03%3A07%3A06.25-07%3A00&cd4=1&cd5=&cd6=&cd7=&cd8=&cd9=&cd10=&cd11=0&z=211490836
3308.4200001322
3311.4009997807
615
35
200
image/gif
Image
https://www.seniorweb.nl/webchat/getchatstats
4081.5699999221
4211.0049999319
761
15
200
application/json
XHR
https://www.seniorweb.nl/webchat/getchatstats
5081.5550000407
5208.5639997385
761
15
200
application/json
XHR
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1364.853
10.85
1379.541
7.004
1530.207
24.807
1827.345
7.357
1834.714
56.504
1891.719
35.066
1948.524
24.631
1973.732
30.912
2007.67
51.087
2063.234
77.158
2158.73
35.151
2196.221
6.747
2234.771
7.537
2248.558
45.111
2301.401
10.906
2870.059
29.624
2915.364
18.957
3068.025
20.532
3333.536
6.947
3567.398
23.407
3990.392
20.569
4010.981
5.338
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data

Metrics

First Contentful Paint — 3.1 s
The time taken for the first image or text on the page to be rendered.
Total Blocking Time — 570 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

Max Potential First Input Delay — 200 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 3.1 s
The time taken for the primary content of the page to be rendered.
Estimated Input Latency — 70 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive seniorweb.nl as laggy when the latency is higher than 0.05 seconds.

Opportunities

Defer offscreen images — Potential savings of 51 KiB
Time to Interactive can be slowed down by resources on the page. Seniorweb.nl should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
18845
18845
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
18158
18158
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/diversen/carousel/130x170%20clubs.jpg?n=6368
15673
15673
Minify CSS — Potential savings of 6 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Seniorweb.nl should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
60006
6276
Remove unused JavaScript — Potential savings of 131 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.seniorweb.nl/JS/Main?v=66Waq7F1D04JK7PDLTfUhmE10jQTCOrQiVln0j2BopM1
55767
42847
https://www.google.com/jsapi
65905
34815
https://script.hotjar.com/modules.8b5df1db44ffdcf36821.js
72117
33492
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
27371
22551
Serve images in next-gen formats — Potential savings of 72 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/apps/sticker-whatsapp-thumb.png
26497
16603
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/lidmaatschap/afbeeldingen/facebook-lidworden_753x320_3.jpg?n=8876
47603
15181
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
18158
11436
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
18845
11089
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/diversen/carousel/130x170%20clubs.jpg?n=6368
15673
10445
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/smartphone/nl-alert%20op%20mobiel.png
16942
9430
Enable text compression — Potential savings of 69 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
59172
50181
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
26899
20884

Diagnostics

Minimize main-thread work — 2.7 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1157.54
Style & Layout
647.68
Other
401.784
Parse HTML & CSS
177.436
Rendering
163.276
Script Parsing & Compilation
148.412
Garbage Collection
19.756

Metrics

Speed Index — 6.0 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 5.1 s
The timing of the largest text or image that is painted.
Time to Interactive — 8.8 s
The time taken for the page to become fully interactive.

Other

First CPU Idle — 8.1 s
The time taken for the page's main thread to be quiet enough to handle input.
First Contentful Paint (3G) — 6120 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Eliminate render-blocking resources — Potential savings of 1,090 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Seniorweb.nl should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
59630
1230
https://www.seniorweb.nl/CSS/WebChat?v=ZZslhYEmiHWjGgJ7MUo2Ysk8DuJlEiHNnAmUCaB_6_g1
1811
180
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
60006
780
Remove unused CSS — Potential savings of 112 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Seniorweb.nl should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
59630
58363
https://www.seniorweb.nl/CSS/Home?v=4zgeLqmnjS6g-sgkO9DQYtrx4yGGyxQROeH8OxoA6T01
60006
56693
Reduce initial server response time — Root document took 1,040 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.seniorweb.nl/
1035.288
Avoid multiple page redirects — Potential savings of 1,110 ms
Redirects can cause additional delays before the page can begin loading. Seniorweb.nl should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://seniorweb.nl/
630
https://seniorweb.nl/
480
https://www.seniorweb.nl/
0
Preload key requests — Potential savings of 3,030 ms
Key requests can be preloaded by using '<link rel=preload>'. Seniorweb.nl should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
URL Potential Savings (Ms)
https://www.seniorweb.nl/Content/Fonts/titilliumweb-regular.woff2
3030
https://www.seniorweb.nl/Content/Fonts/titilliumweb-semibold.woff2
3030
https://www.seniorweb.nl/Content/Fonts/icons.woff
2280
https://www.seniorweb.nl/Content/Fonts/journal.woff2
2130

Diagnostics

Serve static assets with an efficient cache policy — 23 resources found
Seniorweb.nl can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://cdn.vanadcloud.com/chat/1.4/css/style.min.css
0
59630
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/lidmaatschap/afbeeldingen/facebook-lidworden_753x320_3.jpg?n=8876
0
48229
https://cdn.vanadcloud.com/chat/1.4/js/script.min.js
0
27371
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/apps/sticker-whatsapp-thumb.png
0
27161
https://userscoring.io/lib/?uid=US-SW3238447D54D
0
22639
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/over_seniorweb/uit_de_vereniging/ambassadeurs/loekieruissen.jpeg
0
19510
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/home/prikwijzer_home.jpg
0
18823
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/thema/tabletsmartphone/smartphone/nl-alert%20op%20mobiel.png
0
17567
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/diversen/carousel/130x170%20clubs.jpg?n=6368
0
16299
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/nieuws/n41-play-pass.png?n=946
0
13895
https://files.seniorweb.nl/uploadedimages/wwwseniorwebnl/wifinetwerk%20instellen.png
0
9843
https://dev.visualwebsiteoptimizer.com/j.php?a=35572&u=https%3A%2F%2Fwww.seniorweb.nl%2F&r=0.16028429989408122
0
1718
https://dev.visualwebsiteoptimizer.com/v.gif?cd=0&a=35572&d=seniorweb.nl&u=D40995ABC5EEAF7CF0981C322E27AD745&h=bb85fdd9301410e5d91af287b68b78bb&t=false&r=0.3688547950991514
0
579
https://static.hotjar.com/c/hotjar-80034.js?sv=7
60000
2169
https://www.google-analytics.com/plugins/ua/ec.js
3600000
1916
https://www.google-analytics.com/analytics.js
7200000
19293
https://www.seniorweb.nl/Content/Fonts/journal.woff2
2592000000
53899
https://www.seniorweb.nl/Content/Fonts/icons.woff
2592000000
48893
https://www.seniorweb.nl/Content/Fonts/titilliumweb-regular.woff2
2592000000
21994
https://www.seniorweb.nl/Content/Fonts/titilliumweb-semibold.woff2
2592000000
21946
https://www.seniorweb.nl/Content/Images/cookie.png
2592000000
3937
https://www.seniorweb.nl/content/images/logo.svg
2592000000
2826
https://www.seniorweb.nl/Content/Images/social-icons-bg-footer.png
2592000000
2178
Reduce the impact of third-party code — Third-party code blocked the main thread for 380 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
73451
133.496
SHOW DETAILS
76092
89.988
SHOW DETAILS
54303
84.648
SHOW DETAILS
24281
76.696
SHOW DETAILS
13007
0
SHOW DETAILS
2297
0
SHOW DETAILS
569
0
91

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of seniorweb.nl. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Seniorweb.nl may provide assistance to deaf or hearing-impaired users with captions on videos.
`<video>` elements contain a `<track>` element with `[kind="description"]`
Seniorweb.nl may provide relevant information that dialogue cannot, by using audio descriptions.

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements
Niet akkoord
Menu
Zoek
Ontdek het lidmaatschap
Online gemak en vermaak
Digitaal Nalaten
Phishingchecker
Handige links
Fotowedstrijd
Computerwoordenboek
Advertorial
Loekie Ruissen
SeniorWeb-vrijwilliger
Meld u nu aan voor de gratis SeniorWeb Nieuwsbrief en ontvang wekelijks het laa…
Aanmelden

Navigation

`[id]` attributes on active, focusable elements are not unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Failing Elements
Aanmelden nieuwsbrief
Volg ons op Facebook
Volg ons op Twitter
Volg ons op Instagram
Volg ons op YouTube

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
79

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that seniorweb.nl should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Links to cross-origin destinations are safe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.
Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Avoids Application Cache
Application cache is deprecated and is no longer recommended.
Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.9.1
Backbone
1.2.3
Underscore
1.4.4
jQuery Mobile
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.2.3/backbone-min.js
https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.2.3/backbone-min.map
https://static.hotjar.com/c/hotjar-80034.js?sv=7
https://static.hotjar.com/c/hotjar.js.map

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://seniorweb.nl/
Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
4
Medium

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
URL Description
https://www.seniorweb.nl/JS/Home?v=U4nTXLF15XG25iBxkdM-HZadC8SFat3yvVPAR9ITojI1
TypeError: Cannot read property 'engagements' of null at Object.GetFavDevice (https://www.seniorweb.nl/JS/Home?v=U4nTXLF15XG25iBxkdM-HZadC8SFat3yvVPAR9ITojI1:1:1044) at HTMLDocument.<anonymous> (https://www.seniorweb.nl/JS/Home?v=U4nTXLF15XG25iBxkdM-HZadC8SFat3yvVPAR9ITojI1:1:47) at c (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js:3:7857) at Object.fireWith [as resolveWith] (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js:3:8658) at Function.ready (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js:3:3266) at HTMLDocument.H (https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js:3:695)
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for seniorweb.nl. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of seniorweb.nl on mobile screens.
Document uses legible font sizes — 100% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
SHOW DETAILS
100.00%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 98% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
a
28x32
a
a
28x32
a

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
64

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of seniorweb.nl. This includes details about web app manifests.

Fast and reliable

Page load is fast enough on mobile networks
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.

Installable

Web app manifest meets the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.
Configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Sets a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of seniorweb.nl on mobile screens.
Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.
Provides a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Fast and reliable

Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.
`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL
http://seniorweb.nl/
Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.

PWA Optimized

Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 40.114.228.161
Continent: Europe
Country: Netherlands
Netherlands Flag
Region: North Holland
City: Amsterdam
Longitude: 4.9087
Latitude: 52.3534
Currencies: EUR
Languages: Dutch

Web Hosting Provider

Name IP Address
Microsoft Corporation
Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating: 4.3/5 (3 reviews)
WOT Trustworthiness: 85/100
WOT Child Safety: 86/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: *.seniorweb.nl
Issued By: Sectigo RSA Domain Validation Secure Server CA
Valid From: 23rd September, 2020
Valid To: 16th October, 2021
Subject: CN = *.seniorweb.nl
Hash: cdea9944
Issuer: CN = Sectigo RSA Domain Validation Secure Server CA
O = Sectigo Limited
S = GB
Version: 2
Serial Number: 147342929110982617453321348657654924764
Serial Number (Hex): 6ED93746FB83EF5702194D05162605DC
Valid From: 23rd September, 2024
Valid To: 16th October, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
Certificate Policies: Policy: 1.3.6.1.4.1.6449.1.2.2.7
CPS: https://sectigo.com/CPS
Policy: 2.23.140.1.2.1
Authority Information Access: CA Issuers - URI:http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
OCSP - URI:http://ocsp.sectigo.com
SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 7D:3E:F2:F8:8F:FF:88:55:68:24:C2:C0:CA:9E:52:89:
79:2B:C5:0E:78:09:7F:2E:6A:97:68:99:7E:22:F0:D7
Timestamp : Sep 23 10:26:54.094 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:E6:2B:8C:34:EA:4D:65:03:4B:43:A5:
E1:19:86:25:D1:0E:BE:64:7E:AF:B3:5A:74:8B:B5:5B:
4D:03:0B:48:46:02:21:00:87:6B:26:69:AB:F2:F7:D2:
C9:59:CF:44:55:A7:89:BA:55:E8:96:C1:0B:07:EB:25:
23:55:A8:E2:67:D3:8D:5F
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 94:20:BC:1E:8E:D5:8D:6C:88:73:1F:82:8B:22:2C:0D:
D1:DA:4D:5E:6C:4F:94:3D:61:DB:4E:2F:58:4D:A2:C2
Timestamp : Sep 23 10:26:54.240 2020 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:90:2D:C7:6E:3C:3E:ED:E8:BC:BF:CC:
1A:89:4D:83:BE:9B:A0:8A:67:74:9A:F9:5B:88:9E:DD:
50:67:22:0F:D0:02:21:00:F2:1F:43:DC:7C:C1:E0:9F:
7C:F1:FD:49:9F:6F:77:F4:70:72:E6:5F:CC:22:05:C2:
D3:B4:45:CC:C7:50:77:70
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:seniorweb.nl
DNS:*.seniorweb.nl
Technical

DNS Lookup

A Records

Host IP Address Class TTL
seniorweb.nl. 40.114.228.161 IN 59

NS Records

Host Nameserver Class TTL
seniorweb.nl. ns1.transip.nl. IN 21599
seniorweb.nl. ns0.transip.net. IN 21599
seniorweb.nl. ns2.transip.eu. IN 21599

MX Records

Priority Host Server Class TTL
0 seniorweb.nl. seniorweb-nl.mail.protection.outlook.com. IN 59

SOA Records

Domain Name Primary NS Responsible Email TTL
seniorweb.nl. ns0.transip.net. hostmaster.transip.nl. 3599

TXT Records

Host Value Class TTL
seniorweb.nl. v=spf1 IN 59
seniorweb.nl. facebook-domain-verification=n7i4ixwmt4bae3wvjbg8ib3yjmrz2q IN 59
seniorweb.nl. MS=ms73129610 IN 59

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/10.0
Date: 8th October, 2020
Content-Length: 49464
Set-Cookie: *
X-AspNetMvc-Version: 5.2
X-AspNet-Version: 4.0.30319
Request-Context: appId=cid-v1:6da748a2-cef1-45e8-805d-f4367b20a209
Access-Control-Expose-Headers: Request-Context
X-Powered-By: ASP.NET
Content-Security-Policy: frame-ancestors *.seniorweb.nl desktop.eu2.quandago.app desktop.eu2.vanadaloha.net chatapi.eu2.vanadaloha.net seniorweb.crm4.dynamics.com seniorwebtest.crm4.dynamics.com *.axshare.com

Whois Lookup

Created: 17th February, 1997
Changed: 26th November, 2018
Expires:
Registrar: TransIP Group
Vondellaan 47
2332AA LEIDEN
Netherlands
Abuse Contact:
abuse@transip.nl
Creation Date: 1997-02-17
Updated Date: 2018-11-26
DNSSEC: yes
Status:
Nameservers: ns0.transip.net
ns1.transip.nl
ns2.transip.eu
Full Whois: Domain name: seniorweb.nl
Status: active

Registrar:
TransIP Group
Vondellaan 47
2332AA LEIDEN
Netherlands

Abuse Contact:
abuse@transip.nl

Creation Date: 1997-02-17

Updated Date: 2018-11-26

DNSSEC: yes

Domain nameservers:
ns0.transip.net
ns1.transip.nl
ns2.transip.eu

Record maintained by: NL Domain Registry

Copyright notice
No part of this publication may be reproduced, published, stored in a
retrieval system, or transmitted, in any form or by any means,
electronic, mechanical, recording, or otherwise, without prior
permission of the Foundation for Internet Domain Registration in the
Netherlands (SIDN).
These restrictions apply equally to registrars, except in that
reproductions and publications are permitted insofar as they are
reasonable, necessary and solely in the context of the registration
activities referred to in the General Terms and Conditions for .nl
Registrars.
Any use of this material for advertising, targeting commercial offers or
similar activities is explicitly forbidden and liable to result in legal
action. Anyone who is aware or suspects that such activities are taking
place is asked to inform the Foundation for Internet Domain Registration
in the Netherlands.
(c) The Foundation for Internet Domain Registration in the Netherlands
(SIDN) Dutch Copyright Act, protection of authors' rights (Section 10,
subsection 1, clause 1).
View Raw Whois

Nameservers

Name IP Address
ns0.transip.net 195.135.195.195
ns1.transip.nl 195.8.195.195
ns2.transip.eu 37.97.199.195
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seniorweb.nl Infographic

seniorweb.nl by the numbers infographic

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