Mind you, many websites do have an RSS feed but don't publicise it (mostly, I suspect, due to ignorance).
I use https://addons.mozilla.org/en-GB/firefox/addon/get-rss-feed-url/ to find "hidden" RSS feeds to follow (on my frendica instance).
Screenshot from my next talk -
[url=https://u3a.social/photos/plord/image/1412417676695e1b90f15a6708169348][img=
][/img][/url]
#[url=https://u3a.social/search?tag=u3a]u3a[/url] #[url=https://u3a.social/search?tag=u3a.social]u3a.social[/url] @[url=https://u3a.social/profile/u3acommunitiescomputing]U3ACommunities Computing[/url]
