12 Sep 2026 · 5 min read
ai
Cloudflare Flips AI Crawler Defaults on September 15 — What Actually Breaks
Starting September 15, 2026, Cloudflare blocks Training and Agent crawlers by default on ad-monetized pages for every new domain. A technical lead's walkthrough of the Content Signals model, the Googlebot collateral-damage problem, and the opt-out checklist you need before the deadline.
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