See my blog's feed as an example on how to use enclosure: https://blog.3qin.us/feed.xml https://blog.3qin.us/feed.xml W3C has a RSS validator that you can use

See my blog's feed as an example on how to use enclosure: https://blog.3qin.us/feed.xml https://blog.3qin.us/feed.xml W3C has a RSS validator that you can use to validate the RSS file. I also have a blog linter that cross check the consistency between the metadata from the feed and the metadata from the blog posts https://roastidio.us/lint https://roastidio.us/lint Hint: very few blogs pass without warning.