About this tool
Validate an XML sitemap or sitemap index and count its URLs, generate a sitemap from a URL list, or split a large one into files and an index.
Validation downloads the sitemap (gzip included, with a size cap), parses it safely and checks the namespace, the 50,000-URL and 50 MB limits, absolute and same-host URLs, duplicates and lastmod, changefreq and priority values; for an index the first child sitemaps are opened too. Generation and splitting escape every URL as XML.
Example: check Sitemap or website URL = https://www.php.net/sitemap.xml.
A valid sitemap helps crawlers find pages but does not guarantee they are indexed.
Quick steps
- Enter the address of a public page or domain.
- Press Check. The 1CLIK server visits it, which can take a few seconds.
- Read each line — Good, Improve, Problem or Info — with a hint on what to fix.
1CLIK’s server fetches only the public address you enter. Private and internal addresses are refused, and results are cached for a few minutes, not saved to your account.
FAQ
How does the Sitemap Validator, Generator & Splitter work?
Validation downloads the sitemap (gzip included, with a size cap), parses it safely and checks the namespace, the 50,000-URL and 50 MB limits, absolute and same-host URLs, duplicates and lastmod, changefreq and priority values; for an index the first child sitemaps are opened too. Generation and splitting escape every URL as XML.
What should I keep in mind?
A valid sitemap helps crawlers find pages but does not guarantee they are indexed.
Why can the result differ from what I see in my browser?
The check sees what the server sends to 1CLIK, before any JavaScript runs. Sites can also answer automated requests differently, block them, or vary by country.