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Département informatique - Supelec Informatique

Page load speed analysis

  • 63/100

    Normal result
  • 5

    Successful tests
  • 3

    Failed tests
  • First response

    492 ms

  • Resources loaded

    2.5 sec

  • Page rendered

    180 ms

  • Total page load time

    3.1 sec

Click here to check amazing Wwwdi Supelec content for France. Otherwise, check out these important facts you probably never knew about wwwdi.supelec.fr

We analyzed Wwwdi.supelec.fr page load time and found that the first response time was 492 ms and then it took 2.6 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 54.0 kB
    Images 485.2 kB
    Javascripts 610.1 kB
    CSS 85.8 kB

    In fact, the total size of Wwwdi.supelec.fr main page is 1.2 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. 30% of websites need less resources to load. Javascripts take 610.1 kB which makes up the majority of the site volume.

    • Original 54.0 kB
    • After minification 39.9 kB
    • After compression 7.9 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 14.1 kB, which is 26% 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 46.0 kB or 85% of the original size.

    • Original 485.2 kB
    • After optimization 277.0 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. Obviously, Wwwdi Supelec needs image optimization as it can save up to 208.2 kB or 43% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 610.1 kB
    • After minification 509.1 kB
    • After compression 155.1 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 455.0 kB or 75% of the original size.

    • Original 85.8 kB
    • After minification 70.1 kB
    • After compression 13.6 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. Wwwdi.supelec.fr needs all CSS files to be minified and compressed as it can save up to 72.2 kB or 84% of the original size.

Network requests diagram

  • wwwdi.supelec.fr
  • index.js
  • index.css
  • organisation.php
  • head_block.jpg
  • facebook.png
  • twitter.png
  • social-rss.png
  • ico_usen_flag.jpg
  • loupe.jpg
  • nav_block.jpg
  • bandeau.png
  • recherche.png
  • menu.png
  • fond-bigmenu.png
  • pix_570_ffffff.png
  • haut_colgauche_accueil.jpg
  • bas_colgauche_accueil_fi.jpg
  • bas_colgauche.jpg
  • haut-contenu-accueil.jpg
  • bas-contenu-accueil.jpg
  • fond_raye_degrade_gris.png
  • ga.js
  • sprite.png
  • blank.gif
  • __utm.gif
  • accueil_print.css

Our browser made a total of 28 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Wwwdi.supelec.fr, 75% (21 requests) were made to Supelec.fr and 14% (4 requests) were made to All-in-web.fr. The less responsive or slowest element that took the longest time to load (652 ms) relates to the external source Supelec.fr.

Additional info on wwwdi.supelec.fr

Requests

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wwwdi Supelec. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

2

Javascripts

21

Images

3

CSS

26

All

Possible request optimization

2

Javascripts

15

Images

3

CSS

6

Optimized

20

All

Normal result

Redirects

As for redirects, our browser was forwarded to http://www.supelec.fr/deptinfo/ before it reached this domain.

IP address

Wwwdi.supelec.fr uses IP address which is currently shared with 1 other domain. 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.

Normal result

IP Trace

wwwdi.supelec.fr

wdi.supelec.fr

160.228.120.196

DNS records

Type Host Target/ip TTL Other
A

speedy2.supelec.fr

160.228.120.196 43127
CNAME

wwwdi.supelec.fr

speedy2.supelec.fr 43127

Language and encoding

Poor result

Language

N/A  language flag

Detected

FR fr language flag

Claimed

Encoding

ISO-8859-1

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Wwwdi.supelec.fr 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 French. Our system also found out that Wwwdi.supelec.fr main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

HTTPS certificate

SSL Certificate

Wwwdi.supelec.fr 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 87.6% of all visits is France. It’s good for Wwwdi.supelec.fr that their server is also located in France, 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 Wwwdi Supelec. 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:

wwwdi.supelec.fr

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