How to use this tool
- Open your sitemap.xml and copy its full content.
- Paste it in — it's checked for well-formed XML immediately.
- Review the URL count, duplicates, and invalid entries.
Why validate sitemaps in the browser?
This uses the browser's own XML parser to check well-formedness, then walks the parsed document to count and validate entries — no upload needed, so it works on a sitemap that isn't live yet.
Frequently asked questions
- What counts as an "invalid" URL entry?
- An empty <loc> tag, or one that isn't an absolute http:// or https:// URL — sitemaps require full absolute URLs, not relative paths.
- Why would a sitemap have duplicate URLs?
- Usually a generation bug — e.g. the same page listed with and without a trailing slash, or included in two different category loops by mistake. Duplicates don't break anything but add noise search engines have to sort through.
- This says "no <url> entries found" but my file looks right — why?
- You may have pasted a sitemap index file (which lists other sitemap files via <sitemap>/<loc>, not pages via <url>/<loc>) — validate one of the individual sitemaps it points to instead.
How GetByteRush compares
Most free tools for this online work the same way: you upload your file to their server, wait, then download the result — which means your file (and often your email, for a "free" account) sits on someone else's infrastructure. Here's the actual difference:
| Feature | GetByteRush | Typical online sitemap validators |
|---|---|---|
| Test before publishing | Yes — paste any draft content | Usually requires the file to already be live |
| Data ever leaves your device | No — 100% client-side | Often yes |
("Typical online tools" reflects publicly documented behavior of common free file-processing sites as of 2026 — always check a specific competitor's own privacy policy and pricing page, since these details change.)