Our blog agregator has link to the RSS feed in the sources , however this page redirects to /PlanetFreeBSD, which doesn't exists.
Moreover, there is also link for the comments  which looks working, but is probably useless, because comments are not enabled.
 <link rel="alternate" type="application/rss+xml" title="Planet FreeBSD » Feed" href="https://planet.freebsd.org/feed/" />
 <link rel="alternate" type="application/rss+xml" title="Planet FreeBSD » Comments Feed" href="https://planet.freebsd.org/comments/feed/" />
Fix in: https://reviews.freebsd.org/D22221
A commit references this bug:
Date: Sun Nov 3 11:06:00 UTC 2019
New revision: 53526
Remove mentions of planet.freebsd.org as it
does not work anymore.
Submitted by: email@example.com
Patch by: carlavilla@
Reviewed by: bcr
Differential Revision: https://reviews.freebsd.org/D22221
Fixed, I close the PR.