見つかってる

has been found, has turned up

→ 見付かる
見つかっ was found, turned up + てる Progressive aspect
verb · informal, present tense Rare #40,264
has been found, has turned up Conversational contraction of 見つかっている.
JA: 鍵はもう見つかってる。
EN: The key has already been found.
Conjugation of 見付かる
Indicative present
見つかります見つかってる

見つかってるって?

You mean they found it?

— かぐや姫の物語 (2013)

もう見つかってるの

Have you found it already?

— かぐや姫の物語 (2013)

見つかってる

They've found it.

— かぐや姫の物語 (2013)

もう見つかってる

It's already been found.

— ハウルの動く城 (2004)