Raise or fold here. I'd fold.

Terrible call without any tells to back you up. It's one thing to call with JJ on a board of A Q x x x but this is online. Don't get fancy, play your cards and here they're likely to be bad. All you beat is a smaller pocket and a naked ace bluff.

I'd put him on AJs here. A check/raise represents AK and may get him to fold.