What it checks
Format, version, item count, freshness, redirects, feed discovery, duplicate IDs, and media attachments.
Free RSS validator
Check whether a feed works before you add it.
Test RSS, Atom, RDF, JSON Feed, or a webpage that advertises a feed. RSS Mixer checks it through the same safety-bounded parser used by the combiner.
Validate a feed URL
Enter one public feed or webpage URL. Submitted URLs are not sent to analytics.
Safe public fetching
Private networks, oversized responses, excessive redirects, and slow sources are blocked or bounded.
Ready to combine?
After a successful check, carry the URL into the RSS feed combiner.