6.7 sec in total
1.4 sec
5.2 sec
146 ms
Welcome to cerist.dz homepage info - get ready to check CERIST best content for Algeria right away, or after learning these important things about cerist.dz
Centre de Recherche sur l'Information Scientifique et Technique
Visit cerist.dzWe analyzed Cerist.dz page load time and found that the first response time was 1.4 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
cerist.dz performance score
name
value
score
weighting
Value7.7 s
0/100
10%
Value9.7 s
0/100
25%
Value20.4 s
0/100
10%
Value200 ms
89/100
30%
Value0.111
87/100
15%
Value9.8 s
28/100
10%
1380 ms
341 ms
345 ms
521 ms
350 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 90% of them (45 requests) were addressed to the original Cerist.dz, 4% (2 requests) were made to Fonts.googleapis.com and 2% (1 request) were made to Platform.tumblr.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Cerist.dz.
Page size can be reduced by 445.0 kB (47%)
941.9 kB
497.0 kB
In fact, the total size of Cerist.dz main page is 941.9 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. 15% of websites need less resources to load. Images take 485.7 kB which makes up the majority of the site volume.
Potential reduce by 72.6 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 72.6 kB or 82% of the original size.
Potential reduce by 84.4 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, CERIST needs image optimization as it can save up to 84.4 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 157.7 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 157.7 kB or 73% of the original size.
Potential reduce by 130.3 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. Cerist.dz needs all CSS files to be minified and compressed as it can save up to 130.3 kB or 86% of the original size.
Number of requests can be reduced by 33 (70%)
47
14
The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CERIST. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.
1380 ms
template.css
341 ms
rssocial.css
345 ms
rssocial-anim.css
521 ms
rssocial-font.css
350 ms
btcontentslider.css
358 ms
mod_jmslideshow_default.css
670 ms
jquery.min.js
1177 ms
jquery-noconflict.js
678 ms
jquery-migrate.min.js
696 ms
behaviour.min.js
829 ms
caption.js
848 ms
rssocial.js
1004 ms
share.js
33 ms
jquery-migrate.js
1024 ms
jquery-noconflict.js
1036 ms
slides.js
1322 ms
default.js
1201 ms
jquery.easing.1.3.js
1334 ms
html5fallback.js
1363 ms
system.css
1371 ms
general.css
1519 ms
default.css
1695 ms
template.css
1811 ms
mobile.css
1688 ms
jquery.cycle2.js
2030 ms
jquery.cycle2.swipe.js
1843 ms
responsive.js
1988 ms
ios6fix.js
2020 ms
styles.css
1698 ms
demo.css
1816 ms
component.css
2017 ms
modernizr.custom.js
2006 ms
css
25 ms
jquery-latest.pack.js
4 ms
logo_fake.png
989 ms
system.css
995 ms
652x279_fit_ceristDL.jpg
514 ms
652x279_fit_WEB_TV2.jpg
514 ms
652x279_fit_sndl.jpg
558 ms
652x279_fit_2007_transformers_014_1.jpg
705 ms
652x279_fit_ARN_lo_1.jpg
876 ms
652x279_fit_ao4.jpg
691 ms
652x279_fit_TVD_TR_02183_2.jpg
1227 ms
control_button.png
846 ms
css
20 ms
tab_bg.jpg
853 ms
arrows.png
886 ms
cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf
29 ms
rssocial-font.woff
1063 ms
cerist.dz 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.
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
cerist.dz 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
cerist.dz SEO score
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
Tap targets are not sized appropriately
FR
FR
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cerist.dz 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 Cerist.dz 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.
cerist.dz
Open Graph description is not detected on the main page of CERIST. 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: