Valid XML can still be a poor podcast feed.
A podcast needs more than matching tags. Title, description, artwork and audio URLs must appear where apps expect them, and each episode needs a stable identity.
The report separates blocking errors from items worth reviewing. It does not judge the writing or listen to the audio file.
No distribution setting is changed.
When you enter a URL, Idun’s restricted read service fetches at most five megabytes of text over HTTPS. Private networks, local addresses, large responses and excessive redirects are blocked.
The result is a technical check, not approval from Apple, Spotify or another directory. Their review and rules may include additional requirements.