Hey Guys... I need to reply to this because there are so many wrong thinkings!
Pre flop: 3 x villains bet size is imho pretty much standard and absolutely OK. That he calls it is a bit scary, I'd estimate him on TT+,AQ+ unless he is a maniac/loose. His stack is bigger than yours, so most likely not a desperate call.
-> as deep as you are its too small against 2 oponnents 1,1k would be better! Your callingrange is WAY 2 tight. As deep as you are here against your small squeeze most villains are calling much much much loser!
Flop - he checks, maybe didn't hit anything? The c-bet against a checking player is a vital tool to get more info. You didn't hit anything, but the c-bet will tell you how much villains hand is worth compared to the flop. I'd have made it a bit higher, around 2/3rd of the pot up to pot size. If he calls that then he most likely either has a high pocket pair or hit at least Top pair on the flop. But even with your c-bet size it does not seem villain is completely empty handed here.

cbet for info is like 2008 thinking! You either cbet because you want to create value with your hand (worse hands are able to call) or you want to to bring better hands to fold if you don't have sd-value (for example 7, 8 9 high hands on boards where you can bring kx, or ax hands to fold...
Villain should check all highpairs, nuts, hits, etc. to us (pretty much his entire range). From there he can raise, call or do whatever he wants -> the thing is most players cbet way to much!
in this case -> why do you bet flop? do you think worse hands are calling? -> no there are not really worse hands that can call. He he bluffs us on the turn with his worse airtype hands (kx, worse ax) its fine.
do you think we can get off better hands? no -> better hands are def. calling! so your bet is useless!
river -> easy give up. We don't beat much (maybe aj, or some fd combos) but against this bet (with that sizing especially) you wont bring any hit to fold!
Greets,
Tiltberger