XML Sitemap Validator
Validate your XML sitemaps for errors and compliance with search engine guidelines
Validating Sitemap
Validation Results
Sitemap Information
| Sitemap URL: | - |
|---|---|
| Validated on: | - |
| Total URLs: | 0 |
| Validation Status: | - |
Summary
Next Steps:
- Review the validation results below
- Fix any errors or warnings identified
- Revalidate your sitemap after making changes
Validation Details
URL List
| URL | Status | Issues |
|---|
About XML Sitemap Validation
What is XML Sitemap Validation?
XML sitemap validation is the process of checking your sitemap file for errors and ensuring it follows the correct format according to search engine guidelines. A valid sitemap helps search engines discover and index your content more effectively.
What We Check
Our validator performs comprehensive checks on your sitemap:
- XML syntax and structure
- Required sitemap elements
- URL format and accessibility
- Last modified dates
- Change frequency values
- Priority values
- Search engine guidelines compliance
Common Sitemap Errors
Here are some common errors found in XML sitemaps:
| Error Type | Description | Impact |
|---|---|---|
| Invalid XML | Malformed XML syntax | Search engines cannot parse the sitemap |
| Missing URLs | No URLs found in the sitemap | No pages will be indexed |
| Invalid URLs | URLs that don't follow proper format | Search engines cannot access these pages |
| Missing Last Modified | No lastmod attribute for URLs | Search engines don't know when content was updated |
| Invalid Priority | Priority values outside 0.0-1.0 range | Search engines may ignore priority settings |
Best Practices for XML Sitemaps
Follow these best practices to ensure your sitemap is valid and effective:
- Keep your sitemap under 50MB and 50,000 URLs
- Use the correct XML namespace:
xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" - Include only canonical URLs (avoid duplicate content)
- Use absolute URLs instead of relative paths
- Update lastmod dates when content changes
- Use appropriate changefreq values based on content update frequency
- Set priority values between 0.0 and 1.0
- Submit your sitemap to search engines through their webmaster tools
Practical guide: what validation does (and does not) prove
What this is
This validator checks that your sitemap XML is well-formed, follows common sitemap protocol constraints, and—when enabled—may probe listed URLs for obvious HTTP failures. It is a preflight step before or after you submit to Search Console, not a substitute for crawl stats, index coverage reports, or log analysis.
How to use it
Submit the public URL of the sitemap your robots.txt references. Enable URL checks when you want a spot audit of reachability; expect slower runs on huge lists. Fix structural errors first (malformed XML, invalid lastmod, out-of-range priority), then re-run. After fixes, resubmit in Search Console and watch for processing errors over the next days.
How to read the results
Separate protocol issues from business decisions: a valid URL that returns noindex is “reachable” but may be the wrong inclusion. Warnings about optional fields are not always urgent. Cross-check high-error segments against recent deploys or CDN rules—mass 403s often trace to WAF rules, not SEO typos.
Common mistakes
Assuming “valid XML” equals “good SEO”—you can still list low-value or duplicate URLs. Running validators only once per year while the CMS auto-generates broken hrefs. Ignoring sitemap index vs child sitemap boundaries and size limits. Forgetting that CORS or bot blocking can make remote checks flaky; confirm anomalies manually when stakes are high.