Recent I've seen
a request for robots.txt with UA = python-requests/2.31.0
a request for /index.html (my landing page) with UA = Mozilla/5.0 (compatible; BitSightBot/1.0)
These happening one right after the other from the same IP 185.117.225.128. This is an Amazon IP (Portugal ?). Whois info indicates that it's being used by internet-census . org. I hate that outfit, and I nuke all their IP's in my router's IP blocking list as I discover them.
I try to block Amazon in general from hitting my web server - this might be a new CIDR for them (it's only a /24) and seems to be linked to NSEC - Sistemas Informaticos, S.A.