what exactly is the trademark though

the simple word "blockclock" cannot be trademarked neither can "coca-cola" or "microsoft" and for which reason the actual trademark is their distinctive way of writing that thing

if they ripped off the actual logotype then ok, but if they just ripped off "blockclock" then sorry, you are wrong 

 also, i see no problem with you pulling their website from your own domain, that's also completely fair play