Open-source SEO crawler and monitor
Know the moment your SEO breaks.
Paste your site's address. In about a minute you get a health score and your top issues, with no sign-up. Then let CodoSEO watch the site and tell you when something important changes.
Free · first 100 pages · no account needed
How it works
- 1 · Paste your URL.We crawl up to 100 pages politely, at 5 requests per second, as CodoSEObot.
- 2 · See your score.A 0–100 health score from 44 checks, and the issues that matter most.
- 3 · Keep watching.Give your email to unlock every URL per issue, a 500-page crawl and weekly monitoring with alerts.
44 checks after every crawl
- Indexabilitynoindex, canonicals, robots.txt blocks
- Links and redirectsbroken links, chains, loops
- On-pagetitles, descriptions, headings
- Contentthin and duplicate pages
- Technical and sitemapstatus codes, mixed content, sitemap health
- Social and schemaOpen Graph, structured data
Open source. Run it yourself.
CodoSEO is one Rust binary under AGPL-3.0: a CLI, an MCP server for your coding agent, and a self-hostable web app. The cloud runs the same code.
cargo install codoseo