How to implement and verify AI bot access in robots.txt

In your robots.txt, explicitly allow or disallow AI crawlers. To allow AI indexing (Perplexity, ChatGPT, Claude, Gemini), include Allow: / for those user agents. To disallow, use Disallow: / for specific bots. Document your policy. Test by checking access logs for bot visits. Verify with the bots' documentation on user agent names.