01
Confirm the root type
Use urlset for page locations or sitemapindex for a list of child sitemap files.
ALL FREE SEO TOOLS
ONE-FILE XML CHECK
XML sitemap validator
Validate one XML sitemap or sitemap index for its format, namespace, URL count, duplicate locations, invalid URLs, and lastmod dates.
HOW TO USE THE RESULT
Find file-level sitemap problems before submission
A valid sitemap helps crawlers discover preferred pages. Use the result to correct the file, then submit its URL in the search engine tools you use.
02
Review every warning
Remove duplicate loc entries, correct invalid absolute URLs, and repair malformed lastmod dates.
03
Keep preferred URLs
List canonical, indexable pages that return successful responses. Use HTTPS addresses when the site supports HTTPS.
CHECK MORE THAN ONE PAGE
Run the free site check
The site check crawls several pages and returns a prioritized list of technical and content findings.
What this check covers
- The validator checks one uncompressed XML file and follows up to three HTTP redirects.
- It identifies urlset and sitemapindex roots and looks for the standard sitemap namespace.
- It counts loc and lastmod elements and returns a sample of up to 10 locations.
- It does not crawl listed pages, open child sitemaps, or confirm indexing in a search engine.
Frequently asked questions
What is the XML sitemap file limit?
The sitemap protocol allows up to 50,000 locations and 50 MB uncompressed per file. This free checker reads up to 5 MB in one request.
Does the validator check every URL in the sitemap?
No. It checks the sitemap file and its loc values. It does not request every listed page or every child sitemap.
Is lastmod required?
No. When included, lastmod should use a valid date or date-time and should reflect a meaningful page update.