Free tools / Robots.txt and sitemap checker

Free robots.txt and sitemap checker

Check a website's robots.txt and XML sitemaps in one run: blocked paths, sitemap files, URL counts, duplicates, off-host and non-HTTPS entries, missing lastmod and broken listed pages.

The result appears here as JSON.

One free check per tool and IP address per day. Nothing is stored.

What you get

Robots.txt groups, blocked paths and sitemap declarations
Sitemap size, URL counts and lastmod coverage
A ranked list of concrete issues

Not returned: Rankings, backlinks or content quality.

Use it from code or an agent

curl "https://api.ambolt.dev/v1/sitemap-robots-doctor?site=https%3A%2F%2Fwww.sitemaps.org&sampleUrls=3&free=1"

Same tool as an MCP tool (sitemap_robots_doctor, free at 30 requests a minute), as a pay-per-call endpoint ($0.005 a call in USDC) and as an Apify Actor. Reference · Docs

Questions

Does it follow sitemap indexes?

Yes, up to ten sitemap files.

Does it crawl my site?

It reads robots.txt, the sitemaps and checks a small sample of listed URLs.

Is the result an SEO score?

No. It lists facts and issues; it does not score or advise.