Analyze XS4ALL - First Class Internet

XS4ALL First Class Internets, Televisie en Bellen. Voor veilig en betrouwbaar internet. Al jaren bekroond voor de allerbeste service.

Page load speed analysis

  • 66/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    276 ms

  • Resources loaded

    2.5 sec

  • Page rendered

    169 ms

  • Total page load time

    3 sec

Click here to check amazing XS4ALL content for Azerbaijan. Otherwise, check out these important facts you probably never knew about

We analyzed page load time and found that the first response time was 276 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Page optimization

  • HTML 26.5 kB
    Images 137.0 kB
    Javascripts 838.1 kB
    CSS 357.3 kB

    In fact, the total size of main page is 1.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Javascripts take 838.1 kB which makes up the majority of the site volume.

    • Original 26.5 kB
    • After minification 21.4 kB
    • After compression 6.6 kB

    HTML optimization

    HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 5.1 kB, which is 19% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 20.0 kB or 75% of the original size.

    • Original 137.0 kB

    Image optimization

    Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. XS4ALL images are well optimized though.

    • Original 838.1 kB
    • After minification 831.9 kB
    • After compression 275.5 kB

    JavaScript optimization

    It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 562.6 kB or 67% of the original size.

    • Original 357.3 kB
    • After minification 356.8 kB
    • After compression 67.0 kB

    CSS optimization

    CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. needs all CSS files to be minified and compressed as it can save up to 290.2 kB or 81% of the original size.

Network requests diagram

  • optimizely.js
  • mobile.min.css
  • satelliteLib-6f67ed327728b7ddda092723d2e927755c97916f.js
  • vendors.min.js
  • xs4all.min.js
  • xs_aapp_vendor.min.js
  • xs_aapp.js
  • mstag.js
  • event
  • tablet.min.css
  • desktop.min.css
  • s-code-contents-2c35dddb564e768315616003bbb0a84806f6f44f.js
  • campagne-wificheck-01-2016_000.jpg
  • logo-xs4all-emblem-yellow.svg
  • TiemposHeadlineWeb-Light.woff
  • xs4all-icons.woff
  • print.min.css
  • 6039d0bd5506.js
  • mstag.1003102000.js
  • satellite-5549d94d6333300014760800.js
  • satellite-5552019c6338370014330600.js
  • satellite-54dde5a13861330019030800.js
  • TiemposHeadlineWeb-Light.woff
  • fontello.woff
  • satellite-544a6cbfc183019231000858.js
  • satellite-55433b9a34653900145f0000.js

Our browser made a total of 29 requests to load all elements on the main page. We found that 59% of them (17 requests) were addressed to the original, 28% (8 requests) were made to and 7% (2 requests) were made to The less responsive or slowest element that took the longest time to load (944 ms) relates to the external source

Additional info on


The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of XS4ALL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.











Possible request optimization













Good result


As for redirects, our browser reached this domain in two steps. The first redirect led to, then it was forwarded to, and finally we managed to open this domain. We strongly recommend that the redirects should be reduced, as the more redirects a site has, the slower it loads.

IP address uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 300
NS 86400
NS 86400

86400 Mname:
Serial: 2022050500
Refresh: 28800
Retry: 1800
Expire: 604800
Minimum-ttl: 86400
MX 46207 Pri: 10

Language and encoding

Good result


NL nl language flag


NL nl language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it matches the claimed language. Our system also found out that main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Poor result

Visitor World Map

Country of origin for 39.9% of all visits is Azerbaijan. It lies approximately 2150 miles away from the server location (Netherlands) and such a distance cannot critically affect website speed, but moving the server closer to their user base in Azerbaijan can speed up page load time anyway.

Normal result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of XS4ALL. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

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