cnrs.fr

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cnrs.fr is ranked #3,060 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 226 places in four weeks. The domain was registered on Dec 31, 1994, 31 years, 9 months ago, through GIP RENATER, and is paid up until Dec 31, 2026. Its homepage uses jQuery, Drupal and Matomo.

Global rank

#3,060

▲ 61 this week

Domain age

31 years

since Dec 31, 1994

Technologies

detected on the homepage

SEO score

91/100

homepage checks

Popularity rank

#3,060 of the top 1 million sites in the Tranco research ranking, which averages several traffic and DNS sources over 30 days. Best rank in the period shown: #3,060.

Weekly Tranco rank (lower is more popular).

See where cnrs.fr sits in the top 10,000

Domain registration

Registered: Dec 31, 1994 (31 years, 9 months ago)
Expires: Dec 31, 2026
Registrar: GIP RENATER
Name servers: camus.dr15.cnrs.fr, ns0.cnrs.fr, ns1.renater.fr, ns2.cnrs.fr, ns2.renater.fr, ns3.cnrs.fr
DNSSEC: —

From the registry's public RDAP record, checked Oct 1, 2026.

Technology stack

JavaScript libraries

jQuery

CMS & site builders

Drupal 11

Analytics

Matomo

Detected from the homepage HTML and response headers on Oct 14, 2026. Tools loaded only after scripts run (or after consent banners) may be missing.

Homepage SEO check

Checked from the HTML our scanner received on Oct 14, 2026. Content added later by JavaScript isn't counted.

91/100

https://www.cnrs.fr/fr

Centre national de la recherche scientifique (CNRS)

Le Centre national de la recherche scientifique est le plus grand organisme public français de recherche scientifique. Il exerce son activité dans tous les domaines de la connaissance.

19 passed · 4 warnings · 0 failed

Content

✓Title51 characters
!Meta description184 characters — aim for 50–170
✓H1 headingExactly one H1
✓Subheadings11 H2 headings
✓Image alt textAll 19 images have alt text
✓Content lengthAbout 601 words

Indexing

✓IndexableNo noindex directive
✓Canonical URLhttps://www.cnrs.fr
✓robots.txtFound
✓XML sitemapFound
✓Language attributefr
ihreflang2 language alternates
!Structured dataNo JSON-LD or microdata

Social sharing

!Open Graph2 of 3 key tags set
✓Twitter / X cardsummary_large_image

Technical

✓HTTPSServed over HTTPS
✓Mobile viewportFound
✓FaviconFound
✓Character encodingutf-8

Security headers

✓Strict-Transport-SecuritySet
✓Content-Security-PolicySet
✓Clickjacking protectionSet
✓X-Content-Type-OptionsSet
!Referrer-PolicyNot set

Server response

Final URL: https://www.cnrs.fr/fr
HTTP status: 200
Server: —
Response time: 2.50 s (first byte 2.50 s, from our scanner in a US data centre)
HTML size: 78 KB
Compression: gzip

Sites with a similar tech stack

Rank	Website	Built with
#6,215	interno.gov.it	Drupal, jQuery, Google Analytics
#9,971	uib.no	Drupal, Alpine.js, Nginx
#2,641	cnil.fr	Drupal, Cloudflare, Varnish
#3,616	ec-lyon.fr	Drupal, jsDelivr, Apache
#3,651	cnr.it	Drupal, Nginx, jQuery
#8,505	copernicus.eu	Drupal, Azure Front Door, jsDelivr

Sites ranked near cnrs.fr

Rank	Website	Registered	Built with
#3,055	w55c.net	2009	Amazon CloudFront
#3,056	traveloka.com	2011	Amazon CloudFront
#3,057	al-adtech.com	2024	—
#3,058	registry.in	2025	Nginx, Google Analytics, Google Tag Manager
#3,059	mookie1.com	2008	—
#3,061	pastebin.com	2002	cdnjs, Cloudflare, jQuery
#3,062	quizlet.com	2004	Cloudflare
#3,063	ohchr.org	2001	Cloudflare
#3,064	firstvds.ru	—	—
#3,065	uspto.gov	1997	Drupal, Amazon CloudFront, Apache

Questions about cnrs.fr

How popular is cnrs.fr?

cnrs.fr is #3,060 worldwide in the Tranco list published Oct 13, 2026.

How old is cnrs.fr?

cnrs.fr was registered on Dec 31, 1994, which makes the domain 31 years, 9 months old.

What is cnrs.fr built with?

We detected jQuery, Drupal and Matomo on its homepage.

Who is the registrar of cnrs.fr?

GIP RENATER, according to the registry's RDAP record.