How to validate a sitemap

Direct answer

A useful sitemap lists the canonical URLs you want search engines to discover. Check that the file is accessible, valid XML, and contains the correct absolute URLs. A valid sitemap is a discovery hint, not an indexing guarantee.

What to check

1. Find and fetch the file. Look for the Sitemap line in robots.txt or a known /sitemap.xml path. Confirm the response is a successful XML document rather than an HTML error page or application shell.
2. Follow sitemap indexes. A sitemap index points to child sitemap files. Validate each child and de-duplicate URLs. Check host, protocol, redirects, and whether each listed page is the preferred canonical version.
3. Compare freshness and exclusions. Only publish an accurate lastmod when the page meaningfully changed. Remove dead, redirected, noindex, private, and duplicate URLs from the intended index list. Owners can submit the sitemap in Search Console or expose its URL in robots.txt.

Example

Example: robots.txt advertises https://example.com/sitemap.xml. The index contains /posts.xml and /products.xml. If /posts.xml lists a 301 URL, replace it with the final canonical 200 URL and update the sitemap.

What this does not establish

RankMeOff’s free sitemap tool extracts URLs from a supplied sitemap; it does not submit that sitemap to Google. Google treats a sitemap as a hint and may choose not to crawl or index listed URLs.

Sources and next step

• Google: build and submit a sitemap
• Google: sitemap ping endpoint retired

Read the RankMeOff measurement methodology or open the related tool page.