Can't reproduce any issues. Been using it somewhat often today for some projects I'm working on but I had no problems with accessing.
Hm, it is working again now, but I was unable to access it for several hours. I had no problems with any other website.
It might have been a localised issue, e.g. a mirror in Europe. Maybe it was part of the DNS propagation that failed. The error messages were pretty strange - sometimes just 404, but also authentication fails and such.
I'd be very surprised if it was just me, because I was using so many other websites heavily, with no issues. Oh well, if it's fixed, it's fixed.
There's definitely something going on. Right now I also got errors (nginx related) which makes me wonder how busy the server actually is. Seems to have resolved itself (page just loaded) but.. it's definitely not just you.