4.1 sec in total
803 ms
2.8 sec
454 ms
Click here to check amazing Isheyevo Ens Lyon content for France. Otherwise, check out these important facts you probably never knew about isheyevo.ens-lyon.fr
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Visit isheyevo.ens-lyon.frWe analyzed Isheyevo.ens-lyon.fr page load time and found that the first response time was 803 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
isheyevo.ens-lyon.fr performance score
name
value
score
weighting
Value2.9 s
52/100
10%
Value3.9 s
53/100
25%
Value4.9 s
65/100
10%
Value260 ms
83/100
30%
Value0.004
100/100
15%
Value5.1 s
76/100
10%
803 ms
589 ms
208 ms
618 ms
212 ms
Our browser made a total of 47 requests to load all elements on the main page. We found that 94% of them (44 requests) were addressed to the original Isheyevo.ens-lyon.fr, 6% (3 requests) were made to Acces.ens-lyon.fr. The less responsive or slowest element that took the longest time to load (982 ms) relates to the external source Acces.ens-lyon.fr.
Page size can be reduced by 236.9 kB (38%)
624.1 kB
387.2 kB
In fact, the total size of Isheyevo.ens-lyon.fr main page is 624.1 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. 20% of websites need less resources to load. Images take 435.7 kB which makes up the majority of the site volume.
Potential reduce by 29.1 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. This page needs HTML code to be minified as it can gain 8.9 kB, which is 24% 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 29.1 kB or 80% of the original size.
Potential reduce by 69.1 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. Obviously, Isheyevo Ens Lyon needs image optimization as it can save up to 69.1 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 138.7 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. Isheyevo.ens-lyon.fr needs all CSS files to be minified and compressed as it can save up to 138.7 kB or 91% of the original size.
Number of requests can be reduced by 19 (46%)
41
22
The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isheyevo 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 4 to 1 for CSS and as a result speed up the page load time.
isheyevo.ens-lyon.fr
803 ms
ploneScripts2900.js
589 ms
ploneScripts7310.js
208 ms
ploneStyles0729.css
618 ms
ploneStyles1522.css
212 ms
image_large
982 ms
info_icon.gif
98 ms
document_icon.gif
195 ms
print_icon.gif
191 ms
fullscreenexpand_icon.gif
195 ms
pdf_icon.gif
197 ms
flag-gb.gif
282 ms
flag-es.gif
285 ms
flag-fr.gif
289 ms
4a136d4883b0f478757ea59a090b3b16
296 ms
8dae42c1aadecd733b606b66d2cb9e87
387 ms
9a2b5e2fe44a7edea3974bb9500de55b
388 ms
newsitem_icon.gif
389 ms
logo_footer.gif
398 ms
logoens.jpg
429 ms
logoife.jpg
196 ms
logometeofrance.png
582 ms
logacademiedelyon.png
340 ms
planife.jpg
976 ms
top_bg.gif
552 ms
input_background.gif
107 ms
search_icon.gif
106 ms
logo.png
234 ms
Header-rightBlack.png
207 ms
Header-right2.png
206 ms
Bottom-1.png
307 ms
Header-2.png
305 ms
bullet.gif
338 ms
site_icon.gif
405 ms
folder_icon.gif
397 ms
linkTransparent.gif
413 ms
HeaderCalendar-1.png
426 ms
plone_powered.gif
495 ms
colophon_sec508.gif
491 ms
colophon_wai-aa.gif
506 ms
colophon_xhtml.png
520 ms
colophon_css.png
589 ms
colophon_anybrowser.png
588 ms
image
204 ms
image_mini
191 ms
ploneStyles7231.css
105 ms
ploneStyles6666.css
101 ms
isheyevo.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Some elements have a [tabindex] value greater than 0
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
Links do not have a discernible name
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
List items (<li>) are not contained within <ul> or <ol> parent elements.
isheyevo.ens-lyon.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
Browser errors were logged to the console
isheyevo.ens-lyon.fr SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isheyevo.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 Isheyevo.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.
isheyevo.ens-lyon.fr
Open Graph description is not detected on the main page of Isheyevo 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: