It's 6 hours later.
The transaction got 8 confirmations already.
Here is the tx id: https://blockchain.info/tx/21b0f09c7ef18d741fcdfaf2003a0ab067ae6b02fbb3f80aa3f142d9a0de005e
It had low 5 sat/byte fees. So probably this service is legit and they are the ones who confirmed it (right ?)
Please don't depend on this single occasion.
The best rate right now according to https://bitcoinfees.21.co/ is about 150sat/byte.
So if they aren't the ones who did it, how much should it take to confirm a 5 sat/byte transaction on its own ?
I wonder if how they do accelerate transaction on this site, it mentioned that they working with multiple pools, can you share even eith the 2 of them?, and based on the transaction ID, the quoted post is relayed by antpool, and seems..
Nvm I will observe this site, if they totally working with some mining pools or just antpool from its free accelerator which they can manually put the txid on that site.