Yeah right now I just have a user agent list and that does most of the work, the bots that are hitting me mostly have "~bot" in the user agent field so it's been working to stave them off for now. I have to hop in and update the list every few days it helps.

I was interested in rDNS lookups for blocking since most of the IPs i've dealt with come from rDNS bot sources like bytedance, openai and so on.