6.7 sec in total
964 ms
5 sec
697 ms
Click here to check amazing Vive Les SVT content for France. Otherwise, check out these important facts you probably never knew about vivelessvt.com
Les Sciences de la Vie et de la Terre au collège et au lycée. Découverte, actualité, cours, aide et soutien en ligne.
Visit vivelessvt.comWe analyzed Vivelessvt.com page load time and found that the first response time was 964 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
vivelessvt.com performance score
name
value
score
weighting
Value5.3 s
7/100
10%
Value7.4 s
4/100
25%
Value19.4 s
0/100
10%
Value3,180 ms
2/100
30%
Value0.249
50/100
15%
Value22.8 s
1/100
10%
964 ms
177 ms
172 ms
199 ms
353 ms
Our browser made a total of 98 requests to load all elements on the main page. We found that 62% of them (61 requests) were addressed to the original Vivelessvt.com, 20% (20 requests) were made to Pbs.twimg.com and 4% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Vivelessvt.com.
Page size can be reduced by 574.0 kB (8%)
7.1 MB
6.5 MB
In fact, the total size of Vivelessvt.com main page is 7.1 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. 65% of websites need less resources to load. Images take 6.7 MB which makes up the majority of the site volume.
Potential reduce by 48.8 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 48.8 kB or 77% of the original size.
Potential reduce by 284.9 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. Vive Les SVT images are well optimized though.
Potential reduce by 222.0 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 222.0 kB or 72% of the original size.
Potential reduce by 18.3 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. Vivelessvt.com needs all CSS files to be minified and compressed as it can save up to 18.3 kB or 81% of the original size.
Number of requests can be reduced by 26 (27%)
95
69
The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vive Les SVT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
www.vivelessvt.com
964 ms
style.css
177 ms
validationEngine.jquery.css
172 ms
easy-twitter-feed-widget.css
199 ms
jquery.js
353 ms
jquery-migrate.min.js
268 ms
lytebox.js.php
285 ms
lytebox.css
255 ms
jquery.js
359 ms
cycle.js
327 ms
widget-easy-twitter-feed-widget.js
262 ms
wp-emoji-release.min.js
216 ms
logo_reco_bss150.png
249 ms
afr.php
344 ms
fd-vive.jpg
111 ms
logopp.png
105 ms
frise23.jpg
192 ms
pointe.gif
105 ms
Actualit%C3%A9s-sur-VivelesSVT.jpg
115 ms
association.jpg
161 ms
initiatives.jpg
270 ms
au-jour-le-jour.jpg
274 ms
CHRONIQUES-RADIO.jpg
278 ms
R%C3%A9ussir-un-expos%C3%A9-en-SVT.jpg
198 ms
Les-r%C3%A9ussites-d%C3%A9l%C3%A8ves-en-SVT.jpg
259 ms
humour.jpg
282 ms
R%C3%AAvons-en-SVT.jpg
286 ms
pointe2.gif
354 ms
jadore-jadh+%C2%BFre.png
389 ms
webmaster-de-vivelessvt.jpg
544 ms
asso-banni%C3%A8re-FB.jpg
465 ms
image001.png
389 ms
partenariat-educatec-1.jpg
1080 ms
Vive-les-svt-association-pour-la-promotion-des-sciences-de-la-vie-et-de-la-terre.jpg
456 ms
er_prev.png
491 ms
er_plpa.png
492 ms
er_next.png
554 ms
mod%C3%A9lisation-gisement-p%C3%A9trole-SVT.jpg
1000 ms
partenariat-vivelesSVT-salon-de-l%C3%A9ducation-Educatec-Educatice-20151.jpg
1018 ms
%C3%A9valuation-du-cahier-en-SVT.jpg
1467 ms
actu-titre.png
647 ms
facebook.png
646 ms
twitter.png
739 ms
youtube.png
741 ms
flickr.png
834 ms
pinterest-logo.png
926 ms
widgets.js
7 ms
1erevisite.jpg
904 ms
nouveaux-programmes-SVT-coll%C3%A8ge-2016.jpg
1093 ms
like.php
83 ms
svt6.jpg
1699 ms
ga.js
48 ms
timeline.1b43d11859b7663a2225b885f87704a5.js
41 ms
GREGH___.TTF
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svt5.jpg
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vpc6VNjRPXV.js
512 ms
svt4.jpg
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svt3.jpg
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__utm.gif
26 ms
SVT2nde.jpg
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syndication
98 ms
634266068912078848
179 ms
R%C3%A9viser-les-SVT-bac-ES-bac-L.jpg
2682 ms
BACS.jpg
2347 ms
svt44-vivelessvt.jpg
1504 ms
logo_reco_bss150.png
269 ms
2016-1.jpg
2080 ms
Logo-COP-21-Vive-les-SVT.jpg
1956 ms
ann%C3%A9e-internationale-des-sols-vive-les-svt.jpg
1726 ms
ann%C3%A9e-internationale-lumi%C3%A8re-vivelessvt.jpg
1818 ms
vivelessvt-logo.png
1908 ms
er_pagination.png
2015 ms
7b1c26cce97f09014b00b88062371f17.jpg
440 ms
lg.php
220 ms
timeline.4d087f49a21e27038d9769d7c976b8fa.default.css
2 ms
timeline.4d087f49a21e27038d9769d7c976b8fa.default.css
5 ms
4a092c9ba91bca6d950c32cd4909368f_normal.jpeg
62 ms
CAFE_normal.jpg
66 ms
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YSJGsyBi_normal.jpg
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70 ms
CcYWienW4AAdJ8Q.jpg:small
70 ms
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87 ms
jot
142 ms
vivelessvt.com 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 input fields do not have accessible names
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
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
Links do not have a discernible name
vivelessvt.com 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
vivelessvt.com 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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vivelessvt.com can be misinterpreted by Google and other search engines. Our service has detected that French is used on the page, and it does not match the claimed English language. Our system also found out that Vivelessvt.com 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.
vivelessvt.com
Open Graph description is not detected on the main page of Vive Les SVT. 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: