# IABIG — block all AI crawlers (training, AI search, browsing) # Generated 2026-10-26T12:07Z from data/bots.json and the official IP lists published by each company. # Latest version: https://iabig.com/blocklists/ · How to use: https://iabig.com/tools/ai-blocklists/ # Googlebot, Bingbot and Applebot are never blocked (that would remove you from search engines). # Cloudflare: Security > WAF > Custom rules > Edit expression, action: Block. (lower(http.user_agent) contains "amazonbot") or (lower(http.user_agent) contains "bytespider") or (lower(http.user_agent) contains "ccbot") or (lower(http.user_agent) contains "chatgpt-user") or (lower(http.user_agent) contains "claude-searchbot") or (lower(http.user_agent) contains "claude-user") or (lower(http.user_agent) contains "claudebot") or (lower(http.user_agent) contains "duckassistbot") or (lower(http.user_agent) contains "gptbot") or (lower(http.user_agent) contains "meta-externalagent") or (lower(http.user_agent) contains "meta-externalfetcher") or (lower(http.user_agent) contains "mistralai-user") or (lower(http.user_agent) contains "oai-searchbot") or (lower(http.user_agent) contains "perplexity-user") or (lower(http.user_agent) contains "perplexitybot")