Intosoft Tools

Sitemap Checker

Validate XML sitemaps and sitemap indexes — runs entirely in your browser

Enter a sitemap URL (sitemap.xml or sitemap.xml.gz)

Enter a sitemap URL

We'll validate XML structure, URL counts, and check for common issues

What we check

XML validity & encoding
URL count (≤50,000)
File size (≤50MB)
Gzip decompression
lastmod format (ISO-8601)
changefreq & priority values
Duplicate URL detection
Sitemap index recursion
Instant Results
100% Private
No Installation
Free by Intosoft

Sitemap Checker & Validator Online

Validate your XML sitemap for errors. Check if your sitemap.xml is correctly formatted and accessible to search engines. Free SEO sitemap tester.

How It Works

Enter your sitemap URL (e.g., yoursite.com/sitemap.xml). Our tool fetches the sitemap, parses the XML structure, validates it against the sitemaps.org specification, and reports any errors, warnings, or missing required fields.

Common Use Cases

  • Checking if your sitemap.xml is valid before submitting it to Google Search Console
  • Debugging indexing issues caused by malformed sitemaps
  • Verifying that all important pages are included in the sitemap
  • Checking sitemap index files for large websites with multiple sitemaps

Frequently Asked Questions

A sitemap is an XML file that lists the URLs of your website along with metadata (last modified date, priority). It helps search engines discover and crawl your pages efficiently.

A valid sitemap helps Google and Bing discover your pages faster, understand your site structure, and prioritize crawling, leading to better indexing.

Ideally, your sitemap should update automatically whenever you add, modify, or remove pages. Most CMS platforms like WordPress handle this automatically.

An XML sitemap is a file that lists all important URLs on your website. Search engines use it to discover and index your pages more efficiently.

A single sitemap file can contain up to 50,000 URLs and must not exceed 50MB. For larger sites, use a sitemap index that references multiple sitemap files.

It checks for valid XML syntax, correct URL formats, proper lastmod dates, valid changefreq values, priority ranges, missing required tags, and overall sitemap structure.

Update your sitemap whenever you add, remove, or significantly change pages. Many CMS platforms (WordPress, Next.js) generate sitemaps automatically on each build.