XML Sitemap Validator
Fetch and validate any sitemap.xml. Confirms valid <urlset> or <sitemapindex>, counts URLs, checks 50MB / 50K protocol limits, reports lastmod / changefreq / priority coverage.
What powers the Sitemap Validator
Validates urlset vs sitemapindex
Total URL count
Sample URL list
Lastmod / changefreq / priority coverage
50MB / 50K limit warnings
Why the Sitemap Validator is different
Browser-native
The Sitemap Validator runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.
No artificial limits
No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.
Production-grade quality
Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.
Common use contexts
- Pre-Search-Console-submission validation
- Diagnosing why sitemap is not indexed
- Auditing legacy sitemaps
- Verifying CMS-generated sitemaps
Private and secure
Zero upload
All processing happens in your browser. Input is never transmitted, logged or cached.
Works offline
Once the page loads, the tool runs without an internet connection. No network calls happen during use.
No tracking
No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.