What powers opsan.fr?

Last seen Sep 2026 · 15 technologies across 10 categories

Analytics

Vercel Analytics
since May 2026

CDN

Cloudflare
since Mar 2026

Development

Turbopack
since May 2026

JavaScript frameworks

Next.js v16.2.4
since May 2026
Next.js App Router
since May 2026
React
since Mar 2026
RxJS
since Aug 2026

Miscellaneous

Open Graph
since Mar 2026
PWA
since Mar 2026
Webpack
since May 2026

PaaS

Vercel
since May 2026

Performance

Priority Hints
since Mar 2026

Programming languages

Node.js
since May 2026

Security

HSTS
since May 2026

UI frameworks

Tailwind CSS
since May 2026

AI Crawlers

Restricts 16 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.

Training crawlers

  • Applebot-Extended Restricted
  • CCBot Restricted
  • ClaudeBot Restricted
  • Google-Extended Restricted
  • GPTBot Restricted
  • meta-externalagent Restricted

Search and AI assistants

  • Amazonbot Restricted
  • Claude-SearchBot Restricted
  • DuckAssistBot Restricted
  • OAI-SearchBot Restricted
  • PerplexityBot Restricted
  • YouBot Restricted

User-request fetchers

  • ChatGPT-User Restricted
  • Claude-User Restricted
  • MistralAI-User Restricted
  • Perplexity-User Restricted

The other 17 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.

  • Oct 2026 perplexity-user added to robots.txt
  • Oct 2026 amazonbot added to robots.txt
  • Oct 2026 chatgpt-user added to robots.txt
  • Oct 2026 ccbot added to robots.txt
  • Oct 2026 claude-searchbot added to robots.txt
  • Oct 2026 applebot-extended added to robots.txt

See who blocks each AI crawler across the web

AI Crawlers

16 of 33 AI crawlers restricted

Standards: llms.txt

Full breakdown

Audience

  • France

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

0.65 / 10 · ranked #20,986,464 of all domains

1 referring domains · OpenPageRank

Core Web Vitals

LCP1.5 s
CLS0
TTFB400 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: French
  • CDN: Vercel
  • Weight: 0.7 MB · 46 requests
  • Structured data: JSON-LD, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Oct 2026.

Organisation

  • OPSAN — Opérations de Secours et de Santé
  • Industry: Non-profit and religious (declares NGO)
  • Profiles: Facebook, Instagram, LinkedIn, X

From the homepage's own structured data (Oct 2026).

Infrastructure

DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted

Full technology history →
Report an incorrect detection

Recent changes

Look up any website for free

No paywall, no lead-gen, no account. Paste a domain and see what powers it.

No account neededHistory since 2018