Server returned HTTP Error 403: Forbidden [help]

[mbevks]

Describe the bug
403 error when checking a valid RSS feed: https://johnsoncountypost.com/feed/

To Reproduce
URL that triggered the bug:

Expected behavior
Feed expected to validate.

Additional context
I would like this website to show as valid: https://johnsoncountypost.com/feed/

[bsabherwal]

I see same issue with https://livinginnovations.com/feed/ URL. I can't find any hits for this URL on fierwall and I see the RSS feed just fine when I access it via browser.