What powers 
certificat-voltaire.fr?
Last seen Sep 2026 · 25 technologies across 15 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
Programming languages
Security
Tag managers
UI frameworks
Video players
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 *: Allowed (was Restricted)
- Aug 2026 *: Restricted (was Allowed)
- Aug 2026 *: Allowed (was Restricted)
AI Crawlers
No AI crawlers blocked
Audience
- 52% desktop
- 48% phone
France
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.75 / 10 · ranked #277,088 of all domains
77 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: French
- CDN: Cloudflare
- Weight: 0.8 MB · 28 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Certificat Voltaire
- Profiles: LinkedIn
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Cloudflare (104.21.10.133, IPv6)
- DNS: Cloudflare DNS
- Email: nfrance.com
- Email security: no SPF record, no DMARC record
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 2,746,624, 5 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.certificat-voltaire.fr | 18 |
| mon.certificat-voltaire.fr | 10 |
| examen.certificat-voltaire.fr | 6 |
Full technology history →
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Recent changes
- detected Cloudflare Browser Insights Nov 2025