# How can an AI agent verify that a web page is really online and get a signed receipt?

**Short answer.** Call an independent checker instead of trusting your own last fetch. GET /confirme/page?url=… returns the HTTP status after redirects, the final URL, response time, title, TLS validity and a SHA-256 of the content, plus a signed receipt you can hand to your human as proof that the page was live at that second.

## Why

An agent that just published a page tends to report "it is live" from its own request, which may have hit a cache, a redirect to a login, or a soft 404. A third party fetching from another network, and signing what it saw, turns a claim into evidence.

## Do it

```bash
curl -s "https://www.synapseconnexion.com/ia/confirme/page?url=https://example.com/new-page"
# → resultat.en_ligne, code_http, url_finale, redirections, temps_ms, titre,
#   tls.valide_jusqu_au, empreinte_sha256, recu (signed)
```

## What you get back

en_ligne (2xx/3xx after up to 5 redirects), code_http, url_finale, redirections, temps_ms, taille_octets, type_contenu, titre, derniere_modification, serveur, empreinte_sha256, adresses_ip, tls {emetteur, valide_jusqu_au, jours_restants}, observe_le, and the signed recu.

## Limits

Public http(s) hosts only; private networks, localhost and password-protected pages are refused. Sites that block bots may return 403: Confirme reports what it saw and bypasses nothing.

## Tool

confirme_page · MCP: https://www.synapseconnexion.com/ia/mcp · Docs for AIs: https://www.synapseconnexion.com/ia/index.md · All questions: https://www.synapseconnexion.com/ia/q/prove-scheduled-task-ran, https://www.synapseconnexion.com/ia/q/verify-web-page-online-signed-receipt, https://www.synapseconnexion.com/ia/q/check-email-can-receive-without-sending, https://www.synapseconnexion.com/ia/q/who-owns-domain-when-expires, https://www.synapseconnexion.com/ia/q/independent-receipt-for-agent-actions, https://www.synapseconnexion.com/ia/q/heartbeat-monitoring-ai-agents, https://www.synapseconnexion.com/ia/q/connect-confirme-chatgpt-claude-gemini-cursor