Glossary/AI Search & Emerging/Content Signals Policy
AI Search & Emerging
Content Signals Policy
Cloudflare's 2025 robots.txt extension letting sites state yes/no preferences for three uses of their content: search, ai-input, and ai-train.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
The Content Signals Policy is Cloudflare's 2025 extension to robots.txt that lets websites state yes-or-no preferences for three uses of their content: search, ai-input, and ai-train. It separates permission for search indexing from use in AI answers and model training. The signals express preferences rather than technically enforcing them.