5 sec in total
681 ms
4.1 sec
168 ms
Click here to check amazing Ig 2 E Univ Lyon 1 content for France. Otherwise, check out these important facts you probably never knew about ig2e.univ-lyon1.fr
Institut Génie de l'environnement écodeveloppement
Visit ig2e.univ-lyon1.frWe analyzed Ig2e.univ-lyon1.fr page load time and found that the first response time was 681 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
ig2e.univ-lyon1.fr performance score
name
value
score
weighting
Value4.4 s
16/100
10%
Value7.6 s
4/100
25%
Value6.9 s
34/100
10%
Value80 ms
99/100
30%
Value0.009
100/100
15%
Value5.1 s
75/100
10%
681 ms
206 ms
1196 ms
2313 ms
386 ms
Our browser made a total of 53 requests to load all elements on the main page. We found that 92% of them (49 requests) were addressed to the original Ig2e.univ-lyon1.fr, 4% (2 requests) were made to Apis.google.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Ig2e.univ-lyon1.fr.
Page size can be reduced by 92.8 kB (15%)
622.6 kB
529.8 kB
In fact, the total size of Ig2e.univ-lyon1.fr main page is 622.6 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. 35% of websites need less resources to load. Images take 528.0 kB which makes up the majority of the site volume.
Potential reduce by 24.3 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 4.4 kB, which is 14% 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 24.3 kB or 79% of the original size.
Potential reduce by 31.5 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. Ig 2 E Univ Lyon 1 images are well optimized though.
Potential reduce by 37.0 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 37.0 kB or 58% of the original size.
Number of requests can be reduced by 5 (10%)
50
45
The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ig 2 E Univ Lyon 1. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.
ig2e.univ-lyon1.fr
681 ms
css.php
206 ms
colors.php
1196 ms
js.php
2313 ms
xajax_core.js
386 ms
SlideIg2e.js
194 ms
plusone.js
62 ms
fond_site.jpg
423 ms
cb=gapi.loaded_0
75 ms
ga.js
75 ms
logo_ig2e.png
194 ms
logo_lyon1.png
100 ms
separation_recherche.png
103 ms
cadenas.png
106 ms
loupe.png
105 ms
viadeo.png
102 ms
linkedin.png
196 ms
twitter.png
196 ms
picto_inscription.png
198 ms
fleche_gauche.png
199 ms
fleche_droite.png
200 ms
bouchet_1.jpg
384 ms
etoile_slide.png
291 ms
logo_ig2e_jaune_1.jpg
294 ms
portraitig2e-photo01_1.jpg
584 ms
20141128_153552_1.jpg
578 ms
photosig2e-4_1.jpg
579 ms
bureau2_1.jpg
674 ms
101_2985_1.jpg
484 ms
melissa6.jpg
672 ms
cedric_1.jpg
581 ms
clementtravail_1.jpg
770 ms
geste_stoppub.jpg
676 ms
picto_geste.png
679 ms
icone_formation.png
679 ms
croix_actu.png
768 ms
foo_girus.png
771 ms
foo_alehd.png
772 ms
foo_agenceeau.jpg
775 ms
foo_ddt.png
775 ms
foo_irstea.png
865 ms
foo_cnpp_1.png
866 ms
foo_veolia.jpg
867 ms
foo_serpol.png
869 ms
foo_logo_rra.gif
870 ms
pts55f-webfont.woff
965 ms
__utm.gif
12 ms
pts75f-webfont.woff
962 ms
foo_effetb_couleur.jpg
866 ms
arrow_left.png
866 ms
arrow_right.png
866 ms
cercle_vide.png
870 ms
cercle_plein.png
875 ms
ig2e.univ-lyon1.fr accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
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
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
ig2e.univ-lyon1.fr best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
ig2e.univ-lyon1.fr SEO score
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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ig2e.univ-lyon1.fr can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ig2e.univ-lyon1.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.
ig2e.univ-lyon1.fr
Open Graph description is not detected on the main page of Ig 2 E Univ Lyon 1. 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: