4.7 sec in total
713 ms
3.7 sec
271 ms
Click here to check amazing C De R content for Algeria. Otherwise, check out these important facts you probably never knew about cder.dz
Le CDER est un Centre de Recherche dans le domaine des Energies Renouvelables en Algérie
Visit cder.dzWe analyzed Cder.dz page load time and found that the first response time was 713 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
cder.dz performance score
name
value
score
weighting
Value4.4 s
16/100
10%
Value8.0 s
2/100
25%
Value6.9 s
33/100
10%
Value140 ms
96/100
30%
Value0.201
62/100
15%
Value5.2 s
74/100
10%
713 ms
518 ms
159 ms
490 ms
468 ms
Our browser made a total of 37 requests to load all elements on the main page. We found that 92% of them (34 requests) were addressed to the original Cder.dz, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Cder.dz.
Page size can be reduced by 117.9 kB (19%)
623.3 kB
505.4 kB
In fact, the total size of Cder.dz main page is 623.3 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. Only 10% of websites need less resources to load. Images take 459.5 kB which makes up the majority of the site volume.
Potential reduce by 18.0 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 18.0 kB or 80% of the original size.
Potential reduce by 13.2 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. C De R images are well optimized though.
Potential reduce by 73.6 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 73.6 kB or 60% of the original size.
Potential reduce by 13.2 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. Cder.dz needs all CSS files to be minified and compressed as it can save up to 13.2 kB or 75% of the original size.
Number of requests can be reduced by 6 (18%)
34
28
The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of C De R. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for CSS and as a result speed up the page load time.
cder.dz
713 ms
www.cder.dz
518 ms
layout.css
159 ms
jquery-1.4.1.min.js
490 ms
jquery-slidedeck.pack.lite.js
468 ms
navi.css
164 ms
forms.css
320 ms
tables.css
318 ms
homepage.css
320 ms
gallery.css
321 ms
featured_slide.css
464 ms
ga.js
58 ms
cder_logo.png
164 ms
form_input_long.gif
166 ms
featured_slide_bg.gif
167 ms
100.0.JPG
1328 ms
100.1.JPG
1336 ms
100.2.JPG
1656 ms
100.3.JPG
330 ms
100.4.JPG
824 ms
100.5.jpg
1788 ms
a977854299376ad1234fd7f5ec7c1013.png
495 ms
41f1d2c20fe573a29d0bc093c1540ef9.png
657 ms
c785a80812645ba2da62b224526e8263.png
819 ms
09036b1ae6cf563218e04cb56a65f355.png
1136 ms
5baf3779c8537af1b46c79ac85c354a6.png
996 ms
deeb5829674235fb6eea945d4b8ba4e1.jpg
1155 ms
4ee7d07298df67187c178a0934dafa36.jpg
1294 ms
65f45b7083b69381124a12d78a5a9cac.jpg
1313 ms
udes.png
1460 ms
uraer.png
1472 ms
urerms.png
1487 ms
er2.png
1494 ms
footer_bg.gif
1613 ms
pro.gif
1592 ms
__utm.gif
11 ms
collect
66 ms
cder.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
cder.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
cder.dz 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 Cder.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 Cder.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.
cder.dz
Open Graph description is not detected on the main page of C De R. 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: