Validators
sitemap.xml Validator
Validates sitemap.xml against the sitemaps.org schema: namespace check, urlset/url/loc presence, lastmod date format, changefreq enum, priority range, total URL count vs the 50,000 limit, and total uncompressed byte size.
Input
Invalid
Format
unknown
URLs
0
Errors
1
Warnings
0
Issues
- errorXML parse failure: DOMParser is not defined
What this checks
- XML is well-formed.
- Namespace is sitemaps.org/schemas/sitemap/0.9.
- Root is <urlset> or <sitemapindex>.
- Each <url> has a valid <loc> (HTTP/HTTPS, parseable URL, under 2048 chars, not duplicated).
- <lastmod> uses W3C datetime / ISO 8601.
- <changefreq> is in the allowed set.
- <priority> is between 0.0 and 1.0.
- Total URL count is within 50,000.
- Total uncompressed size is within 50 MB.
Verify on a real URL
Run a full agent readiness scan to see how your live site responds end to end.