# reads llms txt across crawlers

reads llms txt across 9 crawlers from 6 vendors, from 9 claims, last verified 2026-09-14.

reads llms txt across 9 crawlers from 6 vendors, from 9 claims, last verified 2026-09-14.

| Crawler | Vendor | Value | Method | Verified | Claim |
| --- | --- | --- | --- | --- | --- |
| Applebot | Apple | not_documented | vendor_doc | 2026-09-13 | claim 16 |
| Bingbot | Microsoft | not_documented | vendor_doc | 2026-09-14 | claim 128 |
| ChatGPT-User | OpenAI | not_documented | vendor_doc | 2026-09-13 | claim 26 |
| Claude-SearchBot | Anthropic | not_documented | vendor_doc | 2026-09-13 | claim 35 |
| Claude-User | Anthropic | not_documented | vendor_doc | 2026-09-13 | claim 45 |
| Googlebot | Google | no | vendor_doc | 2026-09-14 | claim 132 |
| OAI-SearchBot | OpenAI | not_documented | vendor_doc | 2026-09-13 | claim 101 |
| Perplexity-User | Perplexity | not_documented | vendor_doc | 2026-09-13 | claim 110 |
| PerplexityBot | Perplexity | not_documented | vendor_doc | 2026-09-13 | claim 119 |

## Not documented

| Crawler | Vendor |
| --- | --- |
| ClaudeBot | Anthropic |
| Applebot-Extended | Apple |
| Google-Extended | Google |
| GoogleOther | Google |
| GPTBot | OpenAI |
| OAI-AdsBot | OpenAI |

## Sources

| Source |
| --- |
| https://support.apple.com/en-us/119829 |
| https://developers.openai.com/api/docs/bots |
| https://support.claude.com/en/articles/8896518-does-anthropic-crawl-content-from-the-web-and-how-can-site-owners-block-the-crawler |
| https://docs.perplexity.ai/docs/resources/perplexity-crawlers |
| https://www.bing.com/webmasters/help/which-crawlers-does-bing-use-8c184ec0 |
| https://developers.google.com/search/docs/fundamentals/ai-optimization-guide |