What does Cloudflare LOG and FINGERPRINT exactly?

Hi all, before subscribing to Cloudflare I need to know exactly what you log and fingerprint about your customers (not end users). Please note I’ve already read your privacy policy but need further explanations.

  1. when subscribing and using your services, do you fingerprint the customer’s device unique ID?
  2. do you make canvas and font fingerprinting?
  3. do you acquire other infos through WebGL?
  4. do you log any customer’s unique info except IP, OS version and browers type and version?

Any answer will be highly appreciated, thanks.

Why not even an answer by Cloudflare’s staff?


I think they don’t tell you anything about fingerprinting or whatever, you can just read their privacy page.

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