Free SEO tools

46 free SEO tools.
No signup. No nonsense.

The checks Romeo runs on his customers’ sites, free for anyone. Most run in your browser or read a public page. The ones that use live Google data have a small daily allowance.

AI search

Can ChatGPT, Perplexity and Google's AI find you, read you and quote you?

AI searchAI crawler checkerRobots rules, firewall blocks and JavaScript traps that hide you from AI.
AI searchAI answer readiness checkerIs your page easy for an AI assistant to lift a clean answer from?
AI searchBrand entity checkerDoes Google's Knowledge Graph know your brand, and what does it think?
AI searchllms.txt generatorBuild an llms.txt from your sitemap, or check the one you have.
AI searchGA4 AI traffic setupThe regex and steps to see ChatGPT and Perplexity visits in GA4.

Check a page

Paste one URL and see what search engines see.

Check a site

Crawling, sitemaps, redirects, speed and the plumbing underneath.

Keywords and competitors

Live Google data: what people search, who ranks, and what you're missing.

Content and snippets

Titles, descriptions, readability and the words on the page.

Generators

Copy-paste code for robots.txt, schema, meta tags and more.

Calculators and planners

What SEO is worth, and where to start.

Also free

For AI agentsSEO skills libraryThe instruction files behind Romeo, for Claude Code, Codex and other agents.