Check any sitemap.xml for errors — bad URLs, duplicate entries, invalid lastmod or priority values. Paste the XML, upload a file, or fetch it by URL. Free, no signup, validated in your browser.
Validation results appear here.
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Checks every loc is an absolute http(s) URL appearing once, lastmod is a valid date, and priority sits between 0 and 1 — for sitemaps and sitemap indexes alike.
Pasted and uploaded sitemaps never leave your browser; only URL mode fetches remotely.
Every loc must be an absolute http(s) URL and appear only once, lastmod must be a valid YYYY-MM-DD or ISO-8601 datetime, and priority must be a number between 0 and 1. Sitemap indexes get the same loc checks on their child entries.
Errors (like a relative or malformed loc) can make search engines skip the entry entirely. Warnings (like a duplicate URL or an out-of-range priority) are tolerated but usually worth fixing.
Yes — validation runs entirely in your browser. Pasted and uploaded content never leaves your machine; only URL mode sends the address to our fetch proxy.
URL lists as a valid sitemap.xml.
Every URL inside any sitemap.xml.
Locate and check any site's sitemap.
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