withdrawal – Cannot Find Transaction from Blockchain Explorer

I just withdrew some Bitcoin (BTC) from FreeBitco.in to this address:


My withdrawal was confirmed by the website an hour agao, and I received an email from FreeBitco.in showing this link to view the transaction.

However, that link does not show any transactions at all. From my experience and all other information available online, FreeBitco.in seems legit. Why cannot I see the transaction from blockchain explorers? Is that because of the recent drop of hash rate?