ChatGPT
OpenAI- robots.txt
- Partly blocked
- Firewall
- 200 OK
- Page content
- Readable
robots.txt blocks ChatGPT-User, though it may ignore that for requests people make.
Claude and Perplexity can’t read this page. Training crawlers from Anthropic, Google, Apple, Common Crawl, Meta and ByteDance are blocked in robots.txt. That doesn’t stop you appearing in answers.
Checked 28 Sept 2026, 11:30 am UTC
17 crawlers · 1 page · Fastly
robots.txt blocks ChatGPT-User, though it may ignore that for requests people make.
robots.txt blocks Claude-SearchBot and Claude-User.
robots.txt blocks PerplexityBot and Perplexity-User.
These crawlers put pages into AI answers and search results. While they’re blocked, those services won’t show or link this page.
User-agent: ChatGPT-User Allow: / User-agent: Claude-SearchBot Allow: / User-agent: Claude-User Allow: / User-agent: PerplexityBot Allow: / User-agent: Perplexity-User Allow: /
Where we can, we request the page the way each AI crawler does, giving its name (its user agent). We don’t imitate Google, Bing or Apple, because sites check those by IP address and would block our test as a fake.
ClaudeBot, Google-Extended, Applebot-Extended, CCBot, meta-externalagent and Bytespider can’t collect this page for model training. That doesn’t affect whether you appear in AI answers, which use the search crawlers above.
You don’t need one. No major AI company has said its crawlers use llms.txt.
Send us this report and we’ll take it from there.