RSS / Atom Feed Validator
Validate an RSS 2.0 or Atom feed against the spec. Reports missing required fields (title, link, description for RSS; id/title/updated for Atom), malformed dates, broken links, and common rendering issues.
How to use the RSS / Atom Feed Validator
Paste the feed XML. The validator parses the document, identifies whether it's RSS 2.0 or Atom, and checks each item/entry for required fields and common mistakes.