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Sitemap XML Inspector
Inspect a sitemap URL set or sitemap index and report complete locations, duplicates and URL issues.
Sitemap XML
sitemap-xml-inspector.json
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Enter the displayed inputs, using the example values as a starting point. JSON inputs must use the documented shape.
- Choose Calculate result, inspect the complete report and download its JSON file.
- Change inputs and run again, or Reset to restore the examples and clear working output.
Examples
Sitemap XML: <?xml version="1.0"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><url><loc>https://example.com/</loc><lastmod>2026-10-22</lastmod></url><url><loc>https://example.com/about</loc></url></urlset>
Limitations
- Official sitemap namespace, up to 2,000 entries/20,000 elements/nesting 10. No DTD, remote crawl, schema-extension validation or indexing claim. Limited lastmod syntax checks.
- At most 100,000 UTF-16 units per text field and 400,000 UTF-8 bytes combined input; 4 MiB output and a 30-second local worker. Valid Unicode only. Tool-specific limits may be tighter.
- Decimal engineering calculations use finite JavaScript arithmetic. Structured record operations preserve exact JSON numeric tokens. Reports are local calculations or bounded format inspections, not a claim of external validity.
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