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On September 15, Cloudflare changes how it treats AI bot traffic by default. Here's what it means for your scraping setup.

Starting September 15, new Cloudflare domains block AI bots in the Agent and Training categories by default on ad-supported pages. These categories cover AI crawlers, bots collecting data for model training, or acting as autonomous agents. If you're running AI training crawlers or AI agents, this is a real, direct change.

General scraping and automation tools aren't part of this classification.

If you're using residential or ISP proxies for scraping, price monitoring, or account automation, this specific rule likely doesn't apply to your traffic directly. Standard bot detection, the kind that already evaluates IP reputation and request patterns, isn't newly introduced by this update. It has been getting stricter gradually over the past year regardless of this deadline: wider reputation databases, more detailed traffic fingerprinting.

What's changing longer term: Cloudflare's new verification method, Web Bot Auth, lets bots sign requests with a private key instead of relying on a user-agent string. It's still an early standard; adoption is limited so far. AWS and Google are adopting the same approach.

🔎 What's worth focusing on now:

1. Focus on IP quality, not pool size. Clean Residential and ISP IPs remain the stronger foundation for reliable data collection.
2. Match realistic request timing and browser behavior. This affects block rates more than a signature would right now.
3. Test your workflows against Cloudflare-protected sites before scaling volume, especially if you're already seeing blocks or CAPTCHAs.
4. Keep an eye on Web Bot Auth adoption.

Cloudflare's update doesn't replace the need for proxies. It adds one more layer to how modern anti-bot systems work, and it's a good moment to check your setup.

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