Sitemap Checker (Offline)
Paste a sitemap.xml and instantly check structure, URL validity, duplicates, lastmod/changefreq/priority rules, and basic limits. Runs fully offline in your browser.
How to use
How to use
- Open your sitemap.xml file and copy/paste the full XML into the input box (or paste a plain list of URLs, one per line).
- Enable any checks you care about (strict URL checks, show duplicates).
- Click Check sitemap to see counts and issues.
- Fix items flagged in the report, then re-run until issues are gone.
FAQ
Can I paste a sitemap URL instead of XML?
No—this checker runs offline and does not fetch URLs. Open the sitemap in your browser or editor and paste the XML content.
Does it support sitemapindex and urlset?
Yes. It detects <urlset> and <sitemapindex> and applies the appropriate checks.
Will it validate that pages return 200 OK?
No. Without network requests, it can only validate the sitemap content (structure, tags, and URL formatting).
What does “Strict URL checks” do?
It enforces absolute http/https URLs and adds extra sanity checks like whitespace and basic percent-encoding and length warnings.
Why am I seeing an XML parse error?
The XML may be incomplete, contain invalid characters, or be HTML instead of XML. Make sure you paste the raw sitemap XML.
Can it read .gz sitemaps?
Not directly. Decompress the .gz file first, then paste the XML into the tool.
What is the sitemap URL limit?
A single sitemap file is typically limited to 50,000 URLs; if you exceed that, split into multiple sitemaps and use a sitemap index.
Continue your workflow
Browse related tools by task. Use the improved core tools for a consistent workspace with file import, downloads and clear validation errors.