I’m seeing a bit of weirdness with the subscribe-to-website feature.
I subscribed to webfeed:https://www.memoryexpress.com/ scoped to the “Daily Deals” section, so I expect to see a new “article” daily.
I primarily use Newsblur from Reeder on iOS, but the articles don’t show up unless I first access the folder in Newsblur (testing via the web), but at that point it does backfill the articles I missed, so I do think it is scanning/updating daily as the site only displays one deal at a time.
I am testing a couple other web feeds, but I don’t yet know if it is limited to this one feed/site or not, as the posting patterns are fairly irregular for the other webfeed sources I am testing.