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ens-lyon.eu screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

ens-lyon.eu

Page d'accueil du site | École normale supérieure de Lyon

Page Load Speed

4 sec in total

First Response

300 ms

Resources Loaded

3.6 sec

Page Rendered

146 ms

ens-lyon.eu screenshot

About Website

Visit ens-lyon.eu now to see the best up-to-date Ens Lyon content for France and also check out these interesting facts you probably never knew about ens-lyon.eu

S’appuyant sur la tradition française d’excellence des Écoles normales supérieures, l’ENS de Lyon forme les cadres de l’enseignement supérieur et de la recherche en France et dans le monde. Grande é...

Visit ens-lyon.eu

Key Findings

We analyzed Ens-lyon.eu page load time and found that the first response time was 300 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

ens-lyon.eu performance score

0

Network Requests Diagram

ens-lyon.eu

300 ms

ecole-normale-superieure-de-lyon-accueil-77247.kjsp

1338 ms

screenstyles.css

217 ms

ens-lyon.css

426 ms

page_41589846.css

198 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Ens-lyon.eu, 97% (63 requests) were made to Ens-lyon.fr and 2% (1 request) were made to Pw-mark.ens-lyon.fr. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Ens-lyon.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 246.7 kB (37%)

Content Size

660.0 kB

After Optimization

413.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ens-lyon.eu main page is 660.0 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. Images take 371.5 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 32.9 kB

  • Original 43.0 kB
  • After minification 40.8 kB
  • After compression 10.0 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 32.9 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 8.8 kB

  • Original 371.5 kB
  • After minification 362.7 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. Ens Lyon images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 108.5 kB

  • Original 137.6 kB
  • After minification 106.9 kB
  • After compression 29.1 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 108.5 kB or 79% of the original size.

CSS Optimization

-89%

Potential reduce by 96.4 kB

  • Original 107.9 kB
  • After minification 75.0 kB
  • After compression 11.5 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. Ens-lyon.eu needs all CSS files to be minified and compressed as it can save up to 96.4 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (65%)

Requests Now

63

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ens Lyon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ens-lyon.eu

ens-lyon.eu

300 ms

ecole-normale-superieure-de-lyon-accueil-77247.kjsp

ecole-normale-superieure-de-lyon-accueil-77247.kjsp

1338 ms

screenstyles.css

screenstyles.css

217 ms

ens-lyon.css

ens-lyon.css

426 ms

page_41589846.css

page_41589846.css

198 ms

scripts.js

scripts.js

598 ms

fckeditor.js

fckeditor.js

200 ms

jquery.browser.min.js

jquery.browser.min.js

296 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

394 ms

camera.js

camera.js

592 ms

camera.css

camera.css

587 ms

jquery.vticker.min.js

jquery.vticker.min.js

494 ms

drapeau-EN.gif

drapeau-EN.gif

98 ms

drapeau-FR.gif

drapeau-FR.gif

97 ms

drapeau-IT.gif

drapeau-IT.gif

99 ms

question.png

question.png

101 ms

imagette-defaut.jpg

imagette-defaut.jpg

387 ms

bg_menu-haut-gris.gif

bg_menu-haut-gris.gif

192 ms

pict-twitter.png

pict-twitter.png

193 ms

pict-facebook.png

pict-facebook.png

196 ms

logo_ens_vide.gif

logo_ens_vide.gif

199 ms

logo_ens.gif

logo_ens.gif

292 ms

logo_site_vide.gif

logo_site_vide.gif

288 ms

logo_ENSdeLyon.gif

logo_ENSdeLyon.gif

294 ms

logo_idex.jpg

logo_idex.jpg

394 ms

logo_univ-lyon.jpg

logo_univ-lyon.jpg

382 ms

logo_universite_vide.gif

logo_universite_vide.gif

115 ms

logo_chels.png

logo_chels.png

196 ms

bg_rechercher.gif

bg_rechercher.gif

116 ms

bouton_valider-2.gif

bouton_valider-2.gif

116 ms

valider_vide.gif

valider_vide.gif

119 ms

puce-blanche.gif

puce-blanche.gif

193 ms

cache_blanc.gif

cache_blanc.gif

199 ms

fleche.gif

fleche.gif

207 ms

4ltrophy_1455781215421-jpg

4ltrophy_1455781215421-jpg

986 ms

tourgueniev-25-02-au-14-04_1456126279781-jpg

tourgueniev-25-02-au-14-04_1456126279781-jpg

656 ms

bandeau-ta-2016-derniers-jours_1456147355829-jpg

bandeau-ta-2016-derniers-jours_1456147355829-jpg

663 ms

venice-sunset-15-fev-16_1455089762811-jpg

venice-sunset-15-fev-16_1455089762811-jpg

778 ms

classement-the-5e_1453902653751-jpg

classement-the-5e_1453902653751-jpg

481 ms

v_tita_1455272409965-jpg

v_tita_1455272409965-jpg

196 ms

v_atelier-humanites-numeriques_1455532182711-jpg

v_atelier-humanites-numeriques_1455532182711-jpg

392 ms

v_souris-moncorge-contour_1455699000629-jpg

v_souris-moncorge-contour_1455699000629-jpg

469 ms

arezki-boudaoud-norvege-2014_1456411816897-jpg

arezki-boudaoud-norvege-2014_1456411816897-jpg

876 ms

v_ihrim_1454486178507-jpg

v_ihrim_1454486178507-jpg

565 ms

joriss-contour_1456335234894-jpg

joriss-contour_1456335234894-jpg

1019 ms

L_vous-etes-defaut.gif

L_vous-etes-defaut.gif

649 ms

L_acces-directs-defaut.gif

L_acces-directs-defaut.gif

660 ms

L_annuaire-defaut.gif

L_annuaire-defaut.gif

744 ms

bg-rechercher.jpg

bg-rechercher.jpg

755 ms

ens1.js

ens1.js

693 ms

valider-portail.gif

valider-portail.gif

764 ms

L_bienvenue-defaut.gif

L_bienvenue-defaut.gif

776 ms

com.univ.collaboratif.utils.LectureFichiergw

com.univ.collaboratif.utils.LectureFichiergw

889 ms

haut.gif

haut.gif

858 ms

haut-page_vide.gif

haut-page_vide.gif

870 ms

frise-defaut.jpg

frise-defaut.jpg

992 ms

webmestre.gif

webmestre.gif

898 ms

accessibilite.gif

accessibilite.gif

951 ms

mentions.gif

mentions.gif

963 ms

plan.gif

plan.gif

985 ms

ens-pw.js

ens-pw.js

669 ms

caroussel_precedent.png

caroussel_precedent.png

284 ms

caroussel_suivant.png

caroussel_suivant.png

325 ms

printstyles.css

printstyles.css

99 ms

impression.css

impression.css

97 ms

SEO Factors

ens-lyon.eu SEO score

0

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    FR

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ens-lyon.eu can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it matches the claimed language. Our system also found out that Ens-lyon.eu 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.

Social Sharing Optimization

ens-lyon.eu

Open Graph description is not detected on the main page of Ens Lyon. 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: