Feed Validator Service

You can easily validate your feed by using free service from FeedValidator.org.

It's a validator tool for syndicated feeds. It works with RSS 0.90, 0.91, 0.92, 0.93, 0.94, 1.0, 1.1, and 2.0. It also validates Atom feeds. The validator can find any problems in your feed and give explanation messages for each type of problem. It will highlight your feed source on location where the problem first occured.

Alternatively, you can directly enter your feed URL and click on the 'Validate' button to start validating your feed...