I'm on BT.
I can reach the BMFA site via a Samsung smart tv.
Android tablet says the site can't provide a secure connection on multiple browsers.
W10 PCs say Secure Connection Failed on Firefox
W10 Chrome is blocked by Kaspersky Reason: the object is infected by HEUR:Trojan.Script.Generic
Xbox One either times out or says this domain (bmfa.org) has just been registered