Free website tool

Sitemap tester — validate XML sitemap

Check your sitemap.xml: reachability, valid XML, real URL count (even for WordPress sitemap indexes), lastmod freshness and broken URLs. No account.

Part of the full SEO check no account focus: sitemap

What is checked in detail?

A broken sitemap costs crawl budget and delays indexing of new content.

Sample result

Immediately actionable status overview.

Analysis for example.com

✓ OKsitemap.xml reachable (HTTP 200, 24 KB)
✓ OKSitemap index detected — 7 sub-sitemaps resolved recursively
✓ OK847 URLs total (within 50k limit)
✓ OKlastmod: newest entry 2026-06-14, oldest 2024-02-03
! Notice3 URLs in the sample return 404 — details below
✗ Errorrobots.txt points to /sitemap_index.xml, but the real URL is /sitemap.xml

Frequently asked

A sitemap is the table of contents for your site — it tells Google, Bing and AI crawlers which URLs exist and when they were last updated. Without a sitemap, search engines often miss pages entirely or only discover them slowly.
Availability (HTTP status, encoding, size), valid XML, whether it is a single sitemap or a sitemap index (recursive sub-sitemap resolution), URL count, lastmod freshness, broken URLs (404/5xx) and whether your robots.txt correctly references the sitemap.
WordPress (with Yoast, Rank Math, AIOSEO) generates a sitemap index pointing to multiple sub-sitemaps (post-sitemap.xml, page-sitemap.xml, …). The tester resolves the index recursively and counts the REAL URL total, not just the sub-sitemap count.
Yes. We sample-test the first 50 URLs per sitemap: HTTP status, title, meta description, schema markup presence. Notable 404/5xx URLs are highlighted in the result.
With an account you get the Sitemap monitor: daily checks of your sitemap with email alerts on broken URLs or unexpected URL-count changes, trend charts (growing vs. shrinking sitemap), crawl history and a „dead links" detector — all included in the free account.

Monitor your sitemap continuously?

With the free Rankmio account: daily sitemap checks, email alerts, dead-link detection and crawl history.

Sign up free →

More free Rankmio tools

Every tool runs without an account. Combine them for a quick technical SEO check or use one in isolation.

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Crawl website → PageSpeed

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Fetch file, parse, see all user-agents, allow/disallow rules and sitemaps at once.

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Analyze sitemap → JSON-LD

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