Hi!
A bit offtopic, I apologize, but in my final desperation I'll try here too, just in case... Has anyone here encountered a website on the server in Hetzner's Swedish headquarters not being available for Google bot? The problem occurs completely hectically. I've done all sorts of tests, checked it on webpagetest.org from several American locations, but the site is available and its response time is also adequate.
I recently put the site behind Quic.cloud CDN, it worked fine for a while, Google solved the problem, then the site went down from one moment to the next, Quic.cloud couldn't connect to the server, in the meantime I was able to log in via SSH via a direct IP address.
I have this one server in Sweden at Hetzner, and there is no such problem in other locations.
My hypothesis is that the Swedish center's DDoS protection and firewall may be overworking. Or it could be some kind of routing problem. Of course I wrote to customer service, but according to them they are not blocking anything and everything is fine with them.
Google Search Console also shows problems with the host's availability.
The server has CSF (not an Enhance server), but at the time in question the block list was empty.
The problematic site has now moved to a location in Germany, to an Enhance dedicated server. I really hope this solves it, but I would be very curious about other people's experiences.