We've been working on an official validator. Already pretty useful to catch potential issues in your feed. validator.jsonfeed.org
- FeedPress support for JSON Feed coming soon. That's a big one:
- Great example of appropriate use of JSON Feed extensions. (Just add an underscore before the name of any custom fields!)
- Brent Simmons, co-author of the JSON Feed spec: inessential.com/2017/05/17/jso…
