cnrs.fr
Centre national de la recherche scientifique (CNRS)
Last scanned Jul 29, 2026, 3:00 PM · 10 views
Overall score
Excellent
Summary
Acteur majeur de la recherche fondamentale et de l’innovation à l’échelle mondiale, le Centre national de la recherche scientifique (CNRS) est le seul organisme français actif dans tous les domaines scientifiques. This website uses Drupal. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Acteur majeur de la recherche fondamentale et de l’innovation à l’échelle mondiale, le Centre national de la recherche scientifique (CNRS) est le seul organisme français actif dans tous les domaines scientifiques. Ensemble, les sciences se mettent au service d’un progrès durable qui bénéficie à toute la société.
Top issues to fix
5 issues found
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
401 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+6 overall since Jul 21, 2026
- Overall
- 93
- SEO
- 75
- Security
- 100
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Acteur majeur de la recherche fondamentale et de l’innovation à l’échelle mondiale, le Centre national de la recherche scientifique (CNRS) est le seul organisme français actif dans tous les domaines scientifiques. Ensemble, les sciences se mettent au service d’un progrès durable qui bénéficie à toute la société.
Meta tags
- Title
- Centre national de la recherche scientifique (CNRS)
- Description
- Acteur majeur de la recherche fondamentale et de l’innovation à l’échelle mondiale, le Centre national de la recherche scientifique (CNRS) est le seul organisme français actif dans tous les domaines scientifiques. Ensemble, les sciences se mettent au service d’un progrès durable qui bénéficie à toute la société.
- Canonical
- https://www.cnrs.fr/fr
- Language
- fr
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- index, follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Hellenic Academic and Research Institutions CA
- Subject
- www.cnrs.fr
- Valid from
- Jul 24, 2026
- Valid to
- Feb 8, 2027
- Days until expiry
- 193
- SAN domains
- www.cnrs.fr, www.insb.cnrs.fr, insb.cnrs.fr, www.insu.cnrs.fr, insmi.cnrs.fr, inc.cnrs.fr, www.inc.cnrs.fr, inp.cnrs.fr, www.inee.cnrs.fr, insis.cnrs.fr, insu.cnrs.fr, www.inshs.cnrs.fr, www.inp.cnrs.fr, www.insmi.cnrs.fr, www.in2p3.cnrs.fr, ins2i.cnrs.fr, www.marketing.cnrs.fr, www.ins2i.cnrs.fr, cnrs.fr, marketing.cnrs.fr, www.insis.cnrs.fr, inshs.cnrs.fr, inee.cnrs.fr, in2p3.cnrs.fr
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 11 · H3 7
Links
58 internal · 17 external · 20 broken
Images
20 total · 0 missing alt
Scripts / Styles
11 scripts · 7 stylesheets
JS / CSS size
5.2 KB · 0 B
Page size
81.6 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://cnrs.fr
- Final URL
- https://www.cnrs.fr/fr
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 400 ms
- HTML size
- 81.6 KB
- Redirect chain
- https://cnrs.fr → https://www.cnrs.fr/ → https://www.cnrs.fr/fr
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Frequently asked questions
- What technology does cnrs.fr use?
- cnrs.fr is built with Drupal, jQuery.
- Is cnrs.fr secure (HTTPS)?
- Yes. cnrs.fr uses TLS 1.3 with a certificate issued by Hellenic Academic and Research Institutions CA, valid until Feb 8, 2027.
- Who hosts cnrs.fr?
- Hosting provider information for cnrs.fr is not available yet.
- What is cnrs.fr's SEO score?
- cnrs.fr scored 75/100 for SEO in the latest analysis (fair).
- What is cnrs.fr's overall website score?
- cnrs.fr has an overall SiteGraph score of 93/100, combining SEO, performance, security, and accessibility.
- Has cnrs.fr's score changed over time?
- cnrs.fr's overall score has improved by 6 points (from 87 to 93) since Jul 21, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card