Are AI bots actually reading llms.txt files?

This live experiment tracks whether major AI bots like GPTBot, ClaudeBot, and PerplexityBot are reading llms.txt files across the web.

Each time an AI crawler accesses an llms.txt file, we log an anonymous signal from that site. This helps us understand which bots are actually checking for AI-specific permissions and content rules.

Websites are participating in the experiment