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atelierweb.epfl.ch: Web services – Services and resources

Page load speed analysis

  • 66/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    548 ms

  • Resources loaded

    3.1 sec

  • Page rendered

    275 ms

  • Total page load time

    3.9 sec

Welcome to atelierweb.epfl.ch homepage info - get ready to check Atelier Web Epfl best content for Switzerland right away, or after learning these important things about atelierweb.epfl.ch

We analyzed Atelierweb.epfl.ch page load time and found that the first response time was 548 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Page optimization

  • HTML 43.5 kB
    Images 104.8 kB
    Javascripts 288.1 kB
    CSS 97.0 kB

    In fact, the total size of Atelierweb.epfl.ch main page is 533.4 kB. 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 288.1 kB which makes up the majority of the site volume.

    • Original 43.5 kB
    • After minification 34.2 kB
    • After compression 8.5 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 9.3 kB, which is 21% 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 35.0 kB or 80% of the original size.

    • Original 104.8 kB
    • After optimization 81.9 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. Obviously, Atelier Web Epfl needs image optimization as it can save up to 22.9 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 288.1 kB
    • After minification 276.5 kB
    • After compression 100.2 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 187.9 kB or 65% of the original size.

    • Original 97.0 kB
    • After minification 71.0 kB
    • After compression 16.0 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. Atelierweb.epfl.ch needs all CSS files to be minified and compressed as it can save up to 81.1 kB or 84% of the original size.

Network requests diagram

  • atelierweb.epfl.ch
  • epfl.css
  • homePortal.css
  • jahia.css
  • jquery.min.js
  • jquery.plugins.js
  • epfl.js
  • socialshare.js
  • shCore.js
  • shBrushBash.js
  • shBrushPhp.js
  • shBrushXml.js
  • shCore.css
  • shThemeEPFL.css
  • applications.css
  • wsi.ashx
  • my-server.png
  • 160x90.jpg
  • grey-facebook-round.png
  • grey-twitter-round.png
  • grey-linkedin-round.png
  • grey-googleplus-round.png
  • grey-mail-round.png
  • web-services2.jpg
  • icon_mail.png
  • 160x90.jpg
  • 160x90.jpg
  • underline.gif
  • epfl_small.png
  • sprites-arrow.png
  • sprites.png
  • magnifier.png
  • separator.png
  • icon_home_white.png
  • dot.png
  • arrow-more.gif
  • icons-all.png
  • arrow-login.png
  • ga.js
  • header_fr.jsp
  • __utm.gif
  • __utm.gif
  • epfl_small.png
  • print.css

Our browser made a total of 44 requests to load all elements on the main page. We found that 36% of them (16 requests) were addressed to the original Atelierweb.epfl.ch, 45% (20 requests) were made to Epfl.ch and 7% (3 requests) were made to Actu.epfl.ch. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Epfl.ch.

Additional info on atelierweb.epfl.ch

Requests

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Atelier Web Epfl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

9

Javascripts

25

Images

7

CSS

2

AJAX

43

All

Possible request optimization

1

Javascripts

15

Images

1

CSS

2

AJAX

24

Optimized

19

All

Normal result

IP address

Atelierweb.epfl.ch 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

atelierweb.epfl.ch

cgse.epfl.ch

help-my.epfl.ch

phd.epfl.ch

is-academia.epfl.ch

128.178.222.83

DNS records

Type Host Target/ip TTL Other
A

app-os-exopge.epfl.ch

128.178.222.83 84357
CNAME

atelierweb.epfl.ch

app-os-exopge.epfl.ch 300
AAAA

app-os-exopge.epfl.ch

300 Ipv6: 2001:620:618:1de:1:80b2:de53:1

Language and encoding

Normal result

Language

EN en language flag

Detected

FR fr language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Atelierweb.epfl.ch can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed French language. Our system also found out that Atelierweb.epfl.ch 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

Atelierweb.epfl.ch 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 30.3% of all visits is Switzerland. It’s good for Atelierweb.epfl.ch that their server is also located in Switzerland, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Atelier Web Epfl. 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:

atelierweb.epfl.ch

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