https://example.com/feed. Opening it in a browser shows a wall of tags rather than a page. That is what you want.
Try the usual addresses
Add one of these to the end of the site’s address:/feed · /rss · /feed.xml · /rss.xml · /atom.xml
One of them works on most sites.
By platform
If none of those work
Open the site, press Ctrl+U (Cmd+U on a Mac) to view its source, and search forrss. The feed is in a line like this:
href is the URL.
Some sites have no feed at all. If the search finds nothing, there is nothing to find — ask whoever runs the site, or trigger the workflow another way.
Check it before you save
Paste the URL into a browser. You should see tags and article titles. A normal-looking page, a 404, or a login screen means it is not a feed.Related
Create a workflow
The RSS poster example.
A workflow didn't run
When an article went out and nothing posted.