How can I verify that on iCloud the bookmarked favorites and reading list is there?

I remember choosing for iCloud to include keeping track of the things

that I have bookmarked as favorites and the reading list (with the idea

that if something should happen I could find this information at my

iCloud account).

Using an MacBook Air 10.10.5 (as my only equipment) with Safari 10.2 (10603.3.8)

Am I correct that iCloud can include Bookmarked items in this situation?

If so, how to verify that it is doing so?