A suspect is behind bars after attempting to knock down the door of Dana White's home in Maine ... and now, the UFC honcho is thanking fans for helping track down the guy.
White, 54, posted the footage of the incident to Instagram on Monday ... showing a man violently kicking his front door repeatedly.
In the clip, you can see the guy almost fall on his ass after losing his balance during the kicks (let's say he's no Israel Adesanya) ... and he ran off once he realized there was a security camera right in front of his face.