XML Sitemap Validator

An XML sitemap is a structured file (usually sitemap.xml) that lists every important URL on your site so search engines can crawl them efficiently. Validation matters because Google silently ignores entries with malformed <loc> values, non-http(s) URLs, duplicate entries, or invalid XML — and you never see a warning beyond a vague "has errors" message in Search Console.

Paste your sitemap URL into the validator above, click validate, and you'll get a report in under 5 seconds covering URL count, duplicates, malformed entries, and whether it's a single sitemap or a sitemap index. No signup is required and there's no per-day limit beyond a fair-use rate cap.

Google does basic XML validation when you submit a sitemap to Search Console, but it only surfaces high-level errors and can take 24-48 hours to update. This tool runs the check instantly so you can ship a fix before Google notices, and it catches softer issues (like duplicate <loc>) that Search Console treats as warnings rather than errors.

A sitemap index is a parent file that lists multiple child sitemap files — common on sites with more than 50,000 URLs or with separate sitemaps for posts, pages, and products. This validator detects sitemap indexes automatically and reports the child sitemap count plus the first 10 child URLs.

Most commonly because two CMS plugins (e.g. Yoast and Rank Math, or a static export tool plus a CMS plugin) are both writing to the same sitemap. Duplicate <loc> entries don't hurt rankings directly but they pad your URL count and can mask coverage gaps when you check Search Console.

Yes — this is one of its primary use cases. Many RAG pipelines and chatbot training tools (including BuiltABot) read your sitemap to decide which URLs to crawl and index. Validating first means your assistant trains on a complete, deduplicated URL list instead of silently skipping malformed entries.