@jaredj On the BBS someone wanted to use generative AI to populate Gemini with more content. It was a pointless and stupid idea and it never went anywhere, to my knowledge. Not quite crawling but it shows the AI boosters are there (or at least were) on Gemini too.
For now I think Gemini is only protected by obscurity and that to implement a Gemini crawler would not be profitable for crawling companies.
I haven't yet seen AI crawlers in my server logs that I could identify, but there is even less protection with Gemini than with HTTP because of the protocol. Like you cannot require cookies, and javascript things (captchas, Anubis) won't work either. And because it is plaintext it would be easier for crawlers to ingest as well.
I have been thinking about this and I see three lines of defense for #Geminiprotocol possible:
1) firewall level blocking of crawler ip's
2) Requiring client certificates for simply viewing content
3) For a harsher lockdown require server certificates
Something like Iocaine by @algernon with an SNI-based reverse proxy in front of Capsukes would be also great fun.