4.2 sec in total
647 ms
3.1 sec
364 ms
Welcome to centredelangues.ens-lyon.fr homepage info - get ready to check Centre De Langues Ens Lyon best content for France right away, or after learning these important things about centredelangues.ens-lyon.fr
Les cours du second semestre commenceront le 25 janvier 2016. Les INSCRIPTIONS auront lieu sur ce site du 4 au 11 janvier. Merci de consulter l'offre de cours au préalable.
Visit centredelangues.ens-lyon.frWe analyzed Centredelangues.ens-lyon.fr page load time and found that the first response time was 647 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
centredelangues.ens-lyon.fr performance score
name
value
score
weighting
Value3.8 s
27/100
10%
Value3.8 s
54/100
25%
Value5.3 s
58/100
10%
Value100 ms
98/100
30%
Value0
100/100
15%
Value4.1 s
87/100
10%
647 ms
104 ms
216 ms
226 ms
218 ms
Our browser made a total of 71 requests to load all elements on the main page. We found that 49% of them (35 requests) were addressed to the original Centredelangues.ens-lyon.fr, 25% (18 requests) were made to Maps.google.com and 13% (9 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Centredelangues.ens-lyon.fr.
Page size can be reduced by 366.7 kB (37%)
984.8 kB
618.1 kB
In fact, the total size of Centredelangues.ens-lyon.fr main page is 984.8 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. 60% of websites need less resources to load. Javascripts take 536.1 kB which makes up the majority of the site volume.
Potential reduce by 47.1 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 47.1 kB or 81% of the original size.
Potential reduce by 8.1 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. Centre De Langues Ens Lyon images are well optimized though.
Potential reduce by 311.5 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 311.5 kB or 58% of the original size.
Number of requests can be reduced by 28 (43%)
65
37
The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centre De Langues 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 19 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
centredelangues.ens-lyon.fr
647 ms
reset-cachekey-fed741642511ceddcb87f4882a13c5e3.css
104 ms
base-cachekey-8645acb6ff16a1e872efcfde707ecbab.css
216 ms
collective.js.jqueryui.custom.min-cachekey-697fbb02f380300df581c62bd746aa0a.css
226 ms
columns-cachekey-0f783e21ab1311c6f7de839e872958ad.css
218 ms
dropdown-menu-cachekey-d81ac4b153d20039a7f8c294f88d04c8.css
227 ms
print-cachekey-8e8ae9f9fa0a97be884c5258c7cb68cd.css
226 ms
resourcecontentleadimage-cachekey-e5380eca95a762a550706caa88c1a3b0.css
224 ms
collage-cachekey-9e415e2dce24425df7fe2d591d73ac1a.css
318 ms
charteens2014-cachekey-f056a2a3fa8ce9345c12990b956589f8.css
319 ms
ploneCustom-cachekey-a9314eebc7ef8168e86482b6c6e9b90e.css
333 ms
resourceplone.app.jquery-cachekey-988053bad99405e798268f0f92bfb2e3.js
566 ms
inline_validation-cachekey-3f184e0540cd6b268a9751d6f087d753.js
338 ms
tiny_mce_gzip-cachekey-78f4261fd2b50d0e51fcd8ab96e88f43.js
336 ms
ckeditor_vars-cachekey-2d091c9c82743b41cd8fad303c7c0b07.js
1251 ms
resourcecollage-resourcescollage-cachekey-84696fa586fe93e6920fbe2214e9a30c.js
422 ms
js
31 ms
gmaps.js
32 ms
fond-grand-ecran.jpg
122 ms
onglet.png
113 ms
burger.png
171 ms
boutonrecherche.jpg
172 ms
mini
239 ms
chevron.jpg
173 ms
tetiere
1164 ms
logo_udl.png
402 ms
rhonealpes.jpeg
543 ms
leadImage_preview
515 ms
leadImage
822 ms
image_mini
337 ms
image_mini
515 ms
image_mini
634 ms
image_mini
622 ms
image_mini
718 ms
common.js
8 ms
map.js
27 ms
util.js
26 ms
geocoder.js
27 ms
trame.jpg
557 ms
spinner.gif
638 ms
BebasNeue-webfont.woff
841 ms
onion.js
43 ms
openhand_8_8.cur
31 ms
stats.js
27 ms
AuthenticationService.Authenticate
131 ms
GeocodeService.Search
126 ms
ViewportInfoService.GetViewportInfo
89 ms
controls.js
14 ms
transparent.png
21 ms
css
40 ms
google4.png
32 ms
marker.js
23 ms
mapcnt6.png
30 ms
sv5.png
30 ms
tmapctrl.png
27 ms
cb_scout5.png
27 ms
tmapctrl4.png
43 ms
imgs8.png
27 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
17 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
21 ms
Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf
22 ms
d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf
21 ms
vt
65 ms
vt
81 ms
vt
56 ms
vt
77 ms
vt
44 ms
vt
54 ms
vt
96 ms
vt
118 ms
vt
101 ms
centredelangues.ens-lyon.fr accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
centredelangues.ens-lyon.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
centredelangues.ens-lyon.fr SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centredelangues.ens-lyon.fr 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 Centredelangues.ens-lyon.fr 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.
centredelangues.ens-lyon.fr
Open Graph description is not detected on the main page of Centre De Langues 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: