GEO Checker

Free tools

A small kit to make your site easy for AI assistants and search engines to read — each tool is free, instant, and needs no signup.

OGP & Meta Tag Preview

See exactly how your page appears when it is shared on Google, X (Twitter), Facebook, and LINE — then copy the meta tags that fix what is missing. Free, no signup.

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Structured Data (JSON-LD) Generator

Fill in a short form and get valid Schema.org JSON-LD you can paste straight into your page. Or check what structured data a live page already has. Free, no signup.

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robots.txt & llms.txt Generator

Create a robots.txt that lets AI assistants read your site, plus an llms.txt that points them to your best pages. Free, ready to save at your site root.

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AI Agent Safety Check

Paste a URL and we scan the public HTML for text that is hidden from human visitors but readable by AI crawlers and browsing agents — the classic setup for an indirect prompt injection attack. Free, deterministic, no AI involved in the scan itself.

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Why these tools

AI assistants like ChatGPT, Claude, and Perplexity are becoming a front door to the web. To be quoted by them, your pages need to be readable by their crawlers, describe themselves with clear tags, and expose structured facts a machine can trust.

These three free tools each fix one part of that. Preview and repair your share tags so links look right and read clearly. Generate valid Schema.org structured data so AI knows exactly what a page is. Produce a robots.txt that welcomes AI crawlers plus an llms.txt that points them to your best pages.

They are quick wins you can apply today. When you want the full picture — all ten things our checker scores, across every page — run the free AI-friendliness check or the whole-site audit below.