[invisit](https://invisit.dev) · [Docs](https://invisit.dev/docs) · [llms.txt](https://invisit.dev/llms.txt) · [llms-full.txt](https://invisit.dev/llms-full.txt)

# Free tools from invisit

> Small, free tools for the questions we kept answering by hand: can AI assistants read your site, which bots visit it, what it loads and how fast it is for real people. No account, nothing stored.

- [AI visibility checker](https://invisit.dev/tools/ai-visibility.md): Can AI assistants reach and read this page? robots.txt, bot blocking, JavaScript and more.
- [AI robots.txt generator](https://invisit.dev/tools/robots-txt-generator.md): Block AI training, keep AI search. A robots.txt without the grouping mistakes.
- [User agent lookup](https://invisit.dev/tools/user-agent-lookup.md): Person, crawler or script? Read any user agent the way our collector does.
- [Tracker detector](https://invisit.dev/tools/tracker-detector.md): Which analytics, pixels and third parties a page loads, Tag Manager contents included.
- [Analytics script size](https://invisit.dev/tools/analytics-script-size.md): GA4, PostHog, Plausible, Fathom, Umami and more, weighed the same way, with the date.
- [Real-user Web Vitals](https://invisit.dev/tools/web-vitals.md): Core Web Vitals from real Chrome users, for any site, with a 25-week trend.