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I block all traffic from Cloudflare outright on my servers.

Every so often they sneak in new blocks of IP addresses though so you're playing whack-a-mole with a particularly scummy opponent.



They're pretty upfront about their ranges:

https://www.cloudflare.com/en-au/ips/

Or if you prefer:

https://www.cloudflare.com/ips-v4/#




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