What powers cns.fr?
Last seen Aug 2026 · 26 technologies across 13 categories
Analytics
CDN
CMS
Font scripts
JavaScript libraries
Miscellaneous
Operating systems
Programming languages
Security
UI frameworks
Web frameworks
Web servers
Webmail
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Search and AI assistants
- PetalBot Blocked
The other 32 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
- Sep 2026 petalbot added to robots.txt
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
1 of 33 AI crawlers blocked
Audience
- 87% desktop
- 13% phone
India
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.32 / 10 · ranked #189,318 of all domains
147 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 100 ms |
| CLS | 0.2 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.5 MB · 12 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| mage.genoscope.cns.fr | 16 |
| www.genoscope.cns.fr | 10 |
| webmail.genoscope.cns.fr | 7 |