Kemono's been dead for a while now. There's an alternative being hosted by a different person called Pawchive.
You're actually a retard, for real, and absolutely truly a fucking retard. You didn't ask for a solution, you asked if kemono.su worked still. My retort was adequate to answer your exact question.
Also, ps, they're kemono.cr now, which still works. You could have literally googled kemonosu and kemono.cr would have popped up.