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information.epfl.ch: Présentation – EPFL

Practical information on EPFL (Ecole polytechnique fédérale de Lausanne): access, addresses & contacts, activities & facilities on campus, facts & figures.

Page load speed analysis

  • 61/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    460 ms

  • Resources loaded

    3.2 sec

  • Page rendered

    161 ms

  • Total page load time

    3.8 sec

Visit information.epfl.ch now to see the best up-to-date Information EPFL content for Switzerland and also check out these interesting facts you probably never knew about information.epfl.ch

We analyzed Information.epfl.ch page load time and found that the first response time was 460 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 81.0 kB
    Images 200.6 kB
    Javascripts 747.4 kB
    CSS 83.2 kB

    In fact, the total size of Information.epfl.ch main page is 1.1 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. 45% of websites need less resources to load. Javascripts take 747.4 kB which makes up the majority of the site volume.

    • Original 81.0 kB
    • After minification 72.2 kB
    • After compression 21.7 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 8.8 kB, which is 11% 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 59.3 kB or 73% of the original size.

    • Original 200.6 kB
    • After optimization 157.4 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, Information EPFL needs image optimization as it can save up to 43.2 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 747.4 kB
    • After minification 741.2 kB
    • After compression 263.5 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 483.8 kB or 65% of the original size.

    • Original 83.2 kB
    • After minification 61.1 kB
    • After compression 14.1 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. Information.epfl.ch needs all CSS files to be minified and compressed as it can save up to 69.1 kB or 83% of the original size.

Network requests diagram

  • information.epfl.ch
  • epfl.css
  • homePortal.css
  • jahia.css
  • jquery.min.js
  • jquery.plugins.js
  • epfl.js
  • socialshare.js
  • information_style.css
  • pres.css
  • addthis_widget.js
  • wsi.ashx
  • my-server.png
  • grey-facebook-round.png
  • grey-twitter-round.png
  • grey-linkedin-round.png
  • grey-googleplus-round.png
  • grey-mail-round.png
  • EPFL-campus-tour_small2.jpg
  • document_pdf.png
  • underline.gif
  • epfl_small.png
  • sprites-arrow.png
  • sprites.png
  • magnifier.png
  • separator.png
  • icon_home_white.png
  • slash.png
  • home.pl
  • embed.html
  • icons-all.png
  • dot.png
  • arrow-login.png
  • embed.js
  • 300lo.json
  • ga.js
  • header_en.jsp
  • 13157745.json
  • sh.8e5f85691f9aaa082472a194.html
  • __utm.gif
  • __utm.gif
  • embed-runner.js
  • page_1_thumb_large.jpg
  • quant.js
  • css
  • document.xml
  • page_1.jpg
  • pixel;r=190905264;a=p-5cvC4NOeGmtNA;fpan=1;fpa=P0-1079053919-1458266431016;ns=1;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1458266431015;tzo=-180;ref=http%3A%2F%2Fe.issuu.com%2Fembed.html;url=about%3Ablank;ogl=
  • print.css

Our browser made a total of 49 requests to load all elements on the main page. We found that 37% of them (18 requests) were addressed to the original Information.epfl.ch, 24% (12 requests) were made to Epfl.ch and 8% (4 requests) were made to E.issuu.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Epfl.ch.

Additional info on information.epfl.ch

Requests

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Information 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 10 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

10

Javascripts

24

Images

7

CSS

6

AJAX

47

All

Possible request optimization

1

Javascripts

13

Images

1

CSS

6

AJAX

26

Optimized

21

All

Normal result

IP address

Information.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

information.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 45
CNAME

information.epfl.ch

app-os-exopge.epfl.ch 57
AAAA

app-os-exopge.epfl.ch

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

Language and encoding

Normal result

Language

FR fr language flag

Detected

EN en language flag

Claimed

Encoding

UTF-8

Claimed

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

Information.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.

Normal result

Visitor World Map

Country of origin for 30.3% of all visits is Switzerland. It’s good for Information.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 Information 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:

information.epfl.ch

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