つぶやきサイトだったら
呟きサイトだったら
tsubuyakisaitodattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of つぶやきサイト

1. If it were a murmuring/whispering site; If it was a site for muttering/venting

Tara Conditional
Internet
Usually Written in Kana