anyone actually tracking ai visibility successfully?

Sort of. Two things that are cheap and reliable: In GA4, look at referral traffic from ChatGPT, Perplexity, Copilot and Gemini. Small numbers, but it's real visits and you can see which pages they land on. Then a fixed list of 20-30 prompts your customers would ask, run them once a month and note whether you're mentioned or cited. Manual, but you see the trend. Search Console counts AI overview appearances inside the normal performance numbers, it doesn't split them out, so don't expect a report there.