Sitemap.xml Auditor

Turn a sitemap into a clean tree and flag structural issues.

Audit a sitemap.xml in your browser: build a clean URL tree and flag duplicates, non-HTTPS, bad priority/changefreq and lastmod issues. Free, no upload, no…

About Sitemap.xml Auditor

Sitemap.xml Auditor is a free, browser-based tool that parses a sitemap and turns it into a collapsible URL tree while flagging structural and SEO problems. Paste the XML of a `<urlset>` or `<sitemapindex>` and it parses it locally with the browser's built-in DOMParser, then reports duplicate `<loc>` entries, invalid `<priority>` or `<changefreq>` values, non-HTTPS URLs, malformed/over-long URLs, mixed trailing slashes, and invalid or missing `<lastmod>` dates. Everything runs entirely in your browser — your sitemap is never uploaded, and there is no signup.

How to use Sitemap.xml Auditor

  1. Paste your sitemap.xml into the 'Sitemap XML' text box, or click 'Load sample' to try it with a demo sitemap.
  2. Read the summary stats at the top — Total URLs, Unique hosts, Duplicates, and Missing lastmod.
  3. Browse the URL tree to see your site structure grouped by host and path, expanding folders to inspect nested pages.
  4. Review the Health checks panel, which lists each issue with an error, warning, or notice severity.
  5. Click 'Show notices' to reveal lower-severity items like missing-lastmod counts that are collapsed by default.
  6. Click 'Download .txt' to export a sorted, de-duplicated plain-text list of every URL.

Frequently asked questions

Is my sitemap uploaded to a server?
No. The XML is parsed entirely in your browser with the native DOMParser, and all auditing happens on your device — nothing is ever uploaded.
Is it free and do I need an account?
Yes, it's completely free with no signup, account, or watermark.
What sitemap formats does it support?
It handles standard XML sitemaps with `<urlset>` entries and sitemap index files with `<sitemapindex>`/`<sitemap>` entries. It reads the `<loc>`, `<lastmod>`, `<changefreq>`, and `<priority>` fields from each entry.
What problems does it actually flag?
Duplicate `<loc>` URLs, `<priority>` values outside 0.0–1.0, invalid `<changefreq>` values, non-HTTPS URLs, URLs over 2048 characters, inconsistent trailing slashes, `<lastmod>` dates that aren't valid ISO 8601 (YYYY-MM-DD), malformed/relative URLs, and entries missing `<lastmod>`.
Is there a limit on sitemap size?
Yes. To keep the tab responsive it audits up to 50,000 entries and warns you when a larger sitemap is truncated; very large pasted input is also rejected with a size warning since the tree and rendering aren't virtualized.
Can I export the cleaned URL list?
Yes. Click 'Download .txt' to save a sorted, de-duplicated list of all URLs as sitemap-urls.txt.

People also search for

Sitemap.xml Auditor is also known as sitemap xml checker, audit sitemap.xml, sitemap xml validator, sitemap to url list, sitemap.xml to txt, check sitemap for seo, sitemap url tree viewer.