SEO Tool

Sitemap Checker

Validate Your XML Sitemap

Fetch and analyze any XML sitemap. Count URLs, detect structural errors, list nested sitemaps and inspect lastmod, changefreq and priority values.

Deep Validation

12+ checks per sitemap: missing tags, invalid URLs, broken lastmod dates, out-of-range priority, invalid changefreq, oversized files, duplicates, cross-domain URLs and more.

Recursive Sitemap Index

For sitemap indexes we automatically fetch and validate up to 15 sub-sitemaps and aggregate the total URL count across the entire tree.

Privacy Friendly

Sitemaps are fetched server-side with strict SSRF protection. Nothing is stored or shared.

Why You Need a Sitemap Checker

An XML sitemap helps search engines like Google and Bing discover and understand your website's structure. A broken or invalid sitemap can lead to missed pages, slow indexing and lost SEO opportunities.

What is an XML Sitemap?

An XML sitemap is a file that lists all important URLs on your website along with metadata like last modified date, change frequency and priority. Search engines use it as a crawl roadmap to find and index your pages efficiently.

How to Use This Tool

Enter your sitemap URL (or just the domain — we'll try /sitemap.xml automatically). The tool fetches the file, parses the XML and reports the total URL count, sub-sitemaps, lastmod values and any structural issues found.

What This Tool Checks

  • Valid XML structure, correct root element and required on every entry
  • lastmod date format (W3C / ISO 8601), priority range (0.0–1.0) and changefreq enum values
  • URL count against Google's 50,000 limit, file size against 50MB and URL length up to 2048 characters
  • Duplicate URLs, cross-domain URLs and full recursive validation of sub-sitemaps inside a sitemap index

Privacy & Security

Sitemaps are fetched through our server with built-in SSRF protection — internal addresses and private networks are blocked. We never store the URL or sitemap contents.

Frequently Asked Questions

Where should my sitemap be located?
The standard location is yourdomain.com/sitemap.xml. You should also reference it in your robots.txt with a Sitemap: directive and submit it via Google Search Console and Bing Webmaster Tools.
What is a sitemap index?
A sitemap index is a special sitemap that contains links to other sitemap files. This is required when you have more than 50,000 URLs or your sitemap exceeds 50MB. The index allows you to split content across multiple sitemap files.
How often should I update my sitemap?
Update your sitemap whenever you add, remove or significantly modify pages. Many CMS platforms generate sitemaps automatically. The lastmod field should always reflect the actual last modification date of each URL.
Are lastmod, changefreq and priority required?
Only the element is required. The others are optional. Google has stated they largely ignore changefreq and priority but still use lastmod as a strong signal — so make sure it's accurate.
Can this tool check very large sitemaps?
Yes, but the tool limits downloads to 10MB to prevent abuse. For larger sitemaps, the URL list will be truncated in the display, but the validation summary remains accurate.