I’ve been reading this page three times already, but I still don’t understand it.
Or
I’ve read this page three times already, but I still don’t understand it.
Is the action in progress or is it finished?
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Sign up to join this communityWhile no one would really misunderstand you, the second one is the one native English speakers would use. "I've been reading" typically suggests an incomplete or in-progress reading of the page, whereas "I have read" has no room for ambiguity that the page was read entirely.
"Been reading" sounds odd then when used to refer to a single page, since one page could be typically read in a very short time. Applied to a book or something longer than a few pages would sound more natural to a native speaker, as you might only be part way though that piece of literature at the time of the discussion.
If you have read a single page you don't understand you can also say it like this: "I've tried reading this page 3 times already, but I still don’t understand it."