[Brian_K_White]

It's a long standing well known thing for years now. For the technical details just google "archive.is cloudflare". It's been discussed and written up and explained many times over by now. Many times over right here on HN even.

I will only add that as far as I can tell, neither side is exactly doing anything wrong, other than the fact that they both could have concocted some sort of special handling for each other years ago if they wanted. The failure to bother is on both I think.