cder.dz website information.
cder.dz domain name is registered by .DZ top-level domain registry. See the other sites registred in .DZ domain zone.
Following name servers are specified for cder.dz domain:
- cdernet.cder.dz
and probably website cder.dz is hosted by AMAZON-AES - Amazon.com, Inc., US web hosting company. Check the complete list of other most popular websites hosted by AMAZON-AES - Amazon.com, Inc., US hosting company.
According to Alexa traffic rank the highest website cder.dz position was 24648 (in the world). The lowest Alexa rank position was 983869. Now website cder.dz ranked in Alexa database as number 443134 (in the world).
Website cder.dz Desktop speed measurement score (89/100) is better than the results of 87.7% of other sites and shows that the page is performing great on desktop computers.
cder.dz Mobile usability score (61/100) is better than the results of 5.47% of other sites and shows that the page mobile usability is poor and can be improved.
Mobile speed measurement score of cder.dz (74/100) is better than the results of 83.2% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| May-04-2024 | N/A | N/A |
| May-03-2024 | 443,134 | 8,611 |
| May-02-2024 | 451,745 | -8,618 |
| May-01-2024 | 443,127 | 721 |
| Apr-30-2024 | 443,848 | -883 |
| Apr-29-2024 | 442,965 | 6,221 |
| Apr-28-2024 | 449,186 | -194 |
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cder.dz Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
cder.dz whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
cder.dz server information
cder.dz desktop page speed rank
Last tested: 2017-05-22
cder.dz Desktop Speed Test Quick Summary
priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
http://www.cder.dz/squelettes/scripts/jquery-slidedeck.pack.lite.js
Optimize CSS Delivery of the following:
http://www.cder.dz/squelettes/styles/navi.css
http://www.cder.dz/squelettes/styles/forms.css
http://www.cder.dz/squelettes/styles/tables.css
http://www.cder.dz/squelettes/styles/homepage.css
http://www.cder.dz/squelettes/styles/gallery.css
http://www.cder.dz/squelettes/styles/featured_slide.css
priority - 2 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 15.7KiB (27% reduction).
Compressing http://www.cder.dz/local/cache-gd2/a977854299376ad1234fd7f5ec7c1013.png could save 4.4KiB (31% reduction).
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Compressing http://www.cder.dz/local/cache-gd2/84dbc5610b1e4a5813d36c7870e698fb.png could save 1.3KiB (17% reduction).
priority - 0 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
cder.dz Desktop Resources
| Total Resources | 39 |
| Number of Hosts | 4 |
| Static Resources | 35 |
| JavaScript Resources | 3 |
| CSS Resources | 7 |
cder.dz Desktop Resource Breakdown
cder.dz mobile page speed rank
Last tested: 2017-05-22
cder.dz Mobile Speed Test Quick Summary
priority - 32 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
http://www.cder.dz/squelettes/scripts/jquery-slidedeck.pack.lite.js
Optimize CSS Delivery of the following:
http://www.cder.dz/squelettes/styles/navi.css
http://www.cder.dz/squelettes/styles/forms.css
http://www.cder.dz/squelettes/styles/tables.css
http://www.cder.dz/squelettes/styles/homepage.css
http://www.cder.dz/squelettes/styles/gallery.css
http://www.cder.dz/squelettes/styles/featured_slide.css
priority - 2 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 15.7KiB (27% reduction).
Compressing http://www.cder.dz/local/cache-gd2/a977854299376ad1234fd7f5ec7c1013.png could save 4.4KiB (31% reduction).
Compressing http://www.cder.dz/local/cache-gd2/41f1d2c20fe573a29d0bc093c1540ef9.png could save 2.4KiB (30% reduction).
Compressing http://www.cder.dz/local/cache-gd2/2e429f2cd6adea7df2042d24ff70e32d.png could save 2.3KiB (19% reduction).
Compressing http://www.cder.dz/local/cache-gd2/84dbc5610b1e4a5813d36c7870e698fb.png could save 1.3KiB (17% reduction).
priority - 1 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
cder.dz Mobile Resources
| Total Resources | 39 |
| Number of Hosts | 4 |
| Static Resources | 35 |
| JavaScript Resources | 3 |
| CSS Resources | 7 |
cder.dz Mobile Resource Breakdown
cder.dz mobile page usability
Last tested: 2017-05-22
cder.dz Mobile Usability Test Quick Summary
priority - 40 Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
Ministère de l…e Scientifique and 7 others render only 5 pixels tall (14 CSS pixels).Direction Géné…Technologique renders only 5 pixels tall (13 CSS pixels).Centre de Déve…Renouvelables renders only 8 pixels tall (20 CSS pixels).Plan du site and 3 others render only 5 pixels tall (12 CSS pixels).Rechercher : renders only 5 pixels tall (12 CSS pixels).COMMUNICATION and 5 others render only 5 pixels tall (12 CSS pixels).عــــــربــــــي and 1 others render only 5 pixels tall (12 CSS pixels).HYDROGÈNE- ENE…RENOUVELABLES and 4 others render only 5 pixels tall (13 CSS pixels).ENERGIE SOLAIR…ET GEOTHERMIE renders only 5 pixels tall (13 CSS pixels).INFORMATION SC…E ET TECHNIQUE and 3 others render only 5 pixels tall (14 CSS pixels).Division Therm…Solaire (...) and 4 others render only 5 pixels tall (12 CSS pixels).ResearchGate renders only 5 pixels tall (12 CSS pixels).Collaboration…ctivités (...) and 3 others render only 6 pixels tall (16 CSS pixels).Dans le cadre…é par le (...) and 3 others render only 5 pixels tall (12 CSS pixels).| and 10 others render only 5 pixels tall (12 CSS pixels).... and 9 others render only 5 pixels tall (12 CSS pixels).FILIALE ER2 and 3 others render only 5 pixels tall (14 CSS pixels).Centre de Deve…Renouvelables and 2 others render only 5 pixels tall (12 CSS pixels).Site Web: and 2 others render only 5 pixels tall (12 CSS pixels).+213(0)2318905…213(0)23189058 and 1 others render only 5 pixels tall (12 CSS pixels).Formations, Ma…scientifiques and 31 others render only 5 pixels tall (12 CSS pixels).priority - 10 Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
<a href="spip.php?rubrique61">Contact</a> and 1 others are close to other tap targets.<label for="recherche">Rechercher :</label> is close to 1 other tap targets.<input type="submit" class="submit"> is close to 1 other tap targets.<a href="http://www.cder.dz/fr">ACCUEIL</a> is close to 1 other tap targets.<a href="/ar">عــــــربــــــي</a> is close to 1 other tap targets.<dt class="spine spine_1 previous">CDER</dt> and 4 others are close to other tap targets.<dt class="spine spine_2 active">Energie Solair…et Geothermie</dt> is close to 2 other tap targets.<a href="/spip.php?rubrique219"></a> is close to 1 other tap targets.<a href="spip.php?rubrique219">Division Bioén…Environnement</a> and 4 others are close to other tap targets.<a href="./?debut_page=…agination_page" class="lien_pagination">2</a> and 9 others are close to other tap targets.<a href="spip.php?rubrique225">L’EPST CDER</a> and 31 others are close to other tap targets.priority - 10 Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
Configure a viewport for this page.
priority - 8 Size content to viewport
The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.
The page content is 1,100 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:
<h3>COOPERATION</h3> falls outside the viewport.The element
<a href="spip.php?rubrique238">Socio-Economique</a> falls outside the viewport.The element
<a href="spip.php?rubrique237">Internationale</a> falls outside the viewport.The element
<a href="spip.php?rubrique62">Algéro-Espagnole</a> falls outside the viewport.The element
<h3>COMMUNICATION</h3> falls outside the viewport.The element
<a href="spip.php?rubrique309">Communiqués</a> falls outside the viewport.The element
<a href="spip.php?rubrique227">Evénements</a> falls outside the viewport.The element
<a href="spip.php?rubrique41">Actualités</a> falls outside the viewport.The element
<a href="spip.php?rubrique307">Appels d’Offres</a> falls outside the viewport.The element
<a href="spip.php?rubrique308">Offres d’emploi</a> falls outside the viewport.The element
<a href="spip.php?rubrique310">Logo et charte graphique</a> falls outside the viewport.The element
<a href="spip.php?rubrique438">Formulaires</a> falls outside the viewport.The element
<a href="spip.php?rubrique43">Liens utiles</a> falls outside the viewport.The element
<li>Archives</li> falls outside the viewport.cder.dz similar domains
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cder.dz Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
cder.dz TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.