How to valide an RSS feed
An RSS feed is usually created in XML format. 2 major implementations exist: the classic RSS feed format and the "atom" feed format. The latter features a number of extra meat data.
It's not very difficult to create an RSS feed. However, a number of compatibility issues can occur in the implementation of the RSS metadata, resulting in the RSS feed not being read correctly by certain clients or RSS readers.
That is why it's always recommended to validate the RSS feed with an RSS validator before publishing, in order to dot the i's and cross the t's.
Go to validaterssfeed.com and enter the address of the RSS feed to validate it.