Free SEO tools

Free checkers for the issues in an Evisio SEO audit report. Each tests one thing, in seconds. The full report checks your whole site against more than 80 of them and tells you how to fix each one.

Free SEO checkers

SEO-friendly URL checker

Checks a URL for underscores, length and query parameters. Instant, in your browser.

llms.txt checker

Checks that your llms.txt file follows the format AI tools like ChatGPT, Claude and Perplexity expect. Instant, in your browser.

Canonical tag checker

Finds pages with a missing canonical tag or more than one, as part of a free SEO audit report.

AI readiness checker

Checks whether AI assistants can read and describe your site: llms.txt, entity maps, an AI info page and AI crawler access.

Check everything at once

An Evisio SEO audit report runs every check on your site, gives it a website health score, and turns each issue into a task with step-by-step instructions. Start a free SEO audit report of up to 10 pages.

Want to know how to fix something an audit found? The SEO knowledge base has a guide for every issue.