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Thinking along the same lines a PoW check like like anubis[1] may work for OP as well.

Avoid if you dont have to. It is not really good traffic friendly. Especially if current blocking works.

> Especially if current blocking works.

The submission and the context is when current blocking doesn't work...

> Thankfully, CloudFlare is able to handle the traffic with a simple WAF rule and 444 response to reduce the outbound traffic.

That is strictly less resource intensive than serving 200 and some challenge.

Right, but if you re-read the submission, OP already tried that and found the costs to be potentially be too high, and are looking for alternatives...

It was blocking me from accessing GNOME's gitlab instance from my cell phone.

So it mistakedly flagged me as bot. IDK. And it forces legitimate users to wait a while. Not great UX.

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