I checked it out, Its service from ViaBTC. But is this really accelerate transaction or just gimmick or trick to rob some of Bitcoins.
Viabtc's transaction accelerator is a free service but not for all of us. You need to be quick in entering your TXID on their accelerator if it's too late then you have to wait again for an hour.
There's no way for a transaction to be robbed when it's already written in the network.
Because I personally check ViaBTC not responding to transaction ID and BTC.com is requesting payments in BCH.
It's a paid service but I haven't tried it yet.