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What Is Sitemap Validation?
Sitemap validation checks whether your XML sitemap conforms to the sitemap protocol specification. A valid sitemap helps search engines discover, crawl, and index your pages efficiently. Errors in the sitemap can prevent pages from being found by search engines.
Sitemaps are a direct communication channel between your website and search engines. A malformed sitemap — with invalid URLs, incorrect dates, or XML syntax errors — wastes crawl budget and may cause search engines to ignore it entirely.
How the Sitemap Validator Works
CheckTown's sitemap validator parses your XML and checks protocol compliance, URL validity, and common issues.
- XML syntax checking — validates well-formed XML including proper namespaces, closing tags, and encoding
- Protocol compliance — verifies required elements (loc), optional elements (lastmod, changefreq, priority), and value formats
- URL validation — checks that all URLs are absolute, properly encoded, and within the same domain as the sitemap
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Validate Your Sitemap →Sitemap Types
The sitemap protocol supports different types for different content.
- Standard sitemap — lists page URLs with optional metadata like last modification date, change frequency, and priority
- Sitemap index — references multiple sub-sitemaps, required when you have more than 50,000 URLs or the file exceeds 50 MB
- Image and video sitemaps — extensions that provide search engines with metadata about media content for rich search results
When To Use Sitemap Validation
Validate your sitemap after every generation cycle and before submitting to search engines.
- After generation — validate auto-generated sitemaps to catch issues in the generation script
- Search Console submission — check your sitemap before submitting to Google Search Console or Bing Webmaster Tools
- Regular audits — validate periodically to ensure all important pages are included and URLs are current
Frequently Asked Questions
What is the maximum size of a sitemap?
A single sitemap can contain at most 50,000 URLs and must not exceed 50 MB uncompressed. For larger sites, use a sitemap index file that references multiple sub-sitemaps.
Do sitemaps improve search rankings?
Sitemaps do not directly improve rankings. They help search engines discover pages faster, which is especially valuable for new sites, large sites, or pages with few internal links.
Should I include every page in the sitemap?
Include only indexable, canonical pages. Exclude redirects, error pages, paginated URLs, and pages with noindex directives. Quality over quantity improves crawl efficiency.