Well it's either this, or the domain name has been removed from the routing table. Or my Firefox is just being very biased about my browsing experience!:) Go on, try it out now (note depending on when you're reading this, it might have come back up and so it'll just be a random strange claim)
Lol, how embarassing. Turns out it wasn't just random server downtime going on, I was in actual fact confickered. The Win32/Conficker.B strain to be precise. I couldn't browse any PC security, AV-company websites. Fixed it by downloading Windows Malicious Software Removal Tool and leaving it to run and deal with problems it found. Also disabled my network card as a precaution. And it didn't spread on my home network because McAfee did its job. Which means it's just gone up to 2nd place in my list of fave AV s/ware that I've actually used. Kaspersky is 1st, in case you were wondering.