I built AIO Checker a while ago and it even got a few real payments.
But the first version had a problem: it treated llms.txt as too central.
After reading the current docs from Google/OpenAI/Anthropic and looking at how AI crawlers are actually documented, I rebuilt the product around two different jobs:
1. Be visible: can AI/search systems crawl, parse and understand the site?
2. Stay protected: are AI crawlers allowed to access things the owner may want controlled?
The new V3 has:
- free scan
- no login
- AI Visibility Score
- AI Exposure Score
- public example scans
- full ZIP report
- fix.md for Cursor/Claude/ChatGPT
I also raised the paid report from "cheap impulse" pricing to $19 because the old price made the product feel less serious.
Would love feedback on the positioning:
https://aiochecker.vercel.app