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diwww.epfl.ch screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

diwww.epfl.ch

IC-IT Server Home Page

Page Load Speed

3.1 sec in total

First Response

467 ms

Resources Loaded

2.4 sec

Page Rendered

220 ms

diwww.epfl.ch screenshot

About Website

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

The School of Computer and Communication Sciences at EPFL is one of the main European centers for education and research in the field of Information Technology. With a student body comprised of more t...

Visit diwww.epfl.ch

Key Findings

We analyzed Diwww.epfl.ch page load time and found that the first response time was 467 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

diwww.epfl.ch performance score

0

Network Requests Diagram

diwww.epfl.ch

467 ms

ic.epfl.ch

287 ms

epfl-jquery-built.js

466 ms

EPFL.bootstrap_latest.js

283 ms

ic-built.css

293 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Diwww.epfl.ch, 34% (13 requests) were made to Ic.epfl.ch and 16% (6 requests) were made to Static.epfl.ch. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Ic.epfl.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (48%)

Content Size

2.6 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Diwww.epfl.ch main page is 2.6 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. 55% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 123.4 kB

  • Original 153.2 kB
  • After minification 141.8 kB
  • After compression 29.7 kB

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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 123.4 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 45.2 kB

  • Original 965.9 kB
  • After minification 920.7 kB

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. Diwww Epfl images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 729.7 kB

  • Original 1.1 MB
  • After minification 1.0 MB
  • After compression 344.0 kB

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 729.7 kB or 68% of the original size.

CSS Optimization

-83%

Potential reduce by 347.3 kB

  • Original 416.1 kB
  • After minification 413.9 kB
  • After compression 68.8 kB

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. Diwww.epfl.ch needs all CSS files to be minified and compressed as it can save up to 347.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (50%)

Requests Now

34

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Diwww 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 11 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

diwww.epfl.ch

diwww.epfl.ch

467 ms

ic.epfl.ch

ic.epfl.ch

287 ms

epfl-jquery-built.js

epfl-jquery-built.js

466 ms

EPFL.bootstrap_latest.js

EPFL.bootstrap_latest.js

283 ms

ic-built.css

ic-built.css

293 ms

ic.css

ic.css

188 ms

section.css

section.css

209 ms

legacy.css

legacy.css

278 ms

facultyResponsive.css

facultyResponsive.css

187 ms

youtubecarousel.css

youtubecarousel.css

284 ms

homepage_faculty.css

homepage_faculty.css

491 ms

addthis_widget.js

addthis_widget.js

14 ms

wsi.ashx

wsi.ashx

442 ms

logo.png

logo.png

348 ms

analytics.js

analytics.js

112 ms

jquery.tools.min.js

jquery.tools.min.js

314 ms

logo.svg

logo.svg

303 ms

160x90.jpg

160x90.jpg

428 ms

nydG59ZgxuI

nydG59ZgxuI

358 ms

1_OUTSTANDING.jpg

1_OUTSTANDING.jpg

1133 ms

2_LEADERSHIP.jpg

2_LEADERSHIP.jpg

987 ms

3_VISIONARY.jpg

3_VISIONARY.jpg

964 ms

4_INNOVATIVE.jpg

4_INNOVATIVE.jpg

988 ms

5_IC_PROFESSOR.jpg

5_IC_PROFESSOR.jpg

933 ms

160x90.jpg

160x90.jpg

617 ms

160x90.jpg

160x90.jpg

617 ms

epfl-icons.woff

epfl-icons.woff

278 ms

300lo.json

300lo.json

55 ms

ie67-css.d5089428ac7f05efd372.js

ie67-css.d5089428ac7f05efd372.js

48 ms

collect

collect

35 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

245 ms

www-embed-player.js

www-embed-player.js

267 ms

sh.8e5f85691f9aaa082472a194.html

sh.8e5f85691f9aaa082472a194.html

47 ms

epfl-header.en.html

epfl-header.en.html

163 ms

collect

collect

62 ms

4050.js

4050.js

79 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

95 ms

ad_status.js

ad_status.js

98 ms

SEO Factors

diwww.epfl.ch SEO score

0

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Diwww.epfl.ch can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Diwww.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.

Social Sharing Optimization

diwww.epfl.ch

Open Graph description is not detected on the main page of Diwww 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: