# Agent infrastructure reachability

> Whether a crawler you allow in robots.txt actually receives your full page - a 200 over HTTPS, not a WAF challenge, rate-limit, or geoblock - rather than being silently turned away.

<!-- Canonical: https://agentmint.net/signals/agent-infra-reachability/ · Signal in the AgentMint.net Signals Database · Evidence: hypothesis (Low confidence) · Last verified 2026-07-08 · Evidence types are load-bearing: spec-fact | reported | hypothesis (no measured). -->

- **Affects (funnel stage):** Discovery
- **Evidence:** hypothesis
- **Confidence:** Low
- **Impact:** 3/3
- **Status:** active
- **Last verified:** 2026-07-08

## Per-platform status

Undocumented platforms show "unknown" - honest unknowns, never invented.

| Platform | Status | Notes | Source |
| --- | --- | --- | --- |
| ChatGPT | supported | OpenAI publishes verifiable IP/user-agent endpoints (gptbot.json, searchbot.json, chatgpt-user.json) precisely so you can allow-list the real agents. | [link](https://developers.openai.com/api/docs/bots) (verified 2026-07-08) |
| Gemini / Google AI Mode | unknown | Not documented by this platform. | - |
| Perplexity | unknown | Not documented by this platform. | - |
| Copilot | unknown | Not documented by this platform. | - |
| Claude | unknown | Not documented by this platform. | - |

## Evidence and sources

- [Overview of OpenAI Crawlers](https://developers.openai.com/api/docs/bots) (2026-07-08)
- [ACP product feed specification](https://developers.openai.com/commerce/specs/file-upload/products) (2026-07-08)

## How to act on this

Fetch your own product URL with each vendor's published user-agent and IP range, confirm a 200 (not a challenge), serve everything over HTTPS with no mixed content, and re-test after any WAF or CDN change.

### Related checklist items
- [Verify your WAF or bot protection isn't silently blocking legitimate agent IP ranges.](https://agentmint.net/tools/agentic-readiness-checklist/#a-bot-access-04) (Readiness)
- [Serve the whole store over HTTPS.](https://agentmint.net/tools/agentic-readiness-checklist/#a-monitoring-05) (Readiness)
- [Confirm agent IPs aren't caught by aggressive rate-limiting or geoblocking.](https://agentmint.net/tools/agentic-readiness-checklist/#a-monitoring-09) (Readiness)

### Handbook chapters
- [Serving Agent Traffic Without Breaking Your Origin](https://agentmint.net/handbook/serving-agent-traffic/)

### Related signals
- [Crawl directives (robots.txt + sitemap)](https://agentmint.net/signals/crawl-directives/)
- [Origin serve-ability for agents](https://agentmint.net/signals/origin-serveability/)