Show HN: Free AI Bot Tracker – See Which AI Models (GPT, Claude, Grok) Visit You

Built a free invisible tracker that shows which AI models crawl your site. Add one line of code, get real-time analytics on 16+ AI bots including OpenAI, Anthropic, X/Grok, Perplexity, etc.

Server-side detection (Next.js middleware) catches all bots even without JavaScript. Completely private dashboard, zero impact on visitors.

Try it: https://llmscentral.com/widget

Built this after creating LLMS Central (llms.txt repository) and realizing website owners have zero visibility into AI crawling. Now you can see exactly which AI companies are training on your content.

Feedback welcome!