i cant send any screenshot from my home pc, just because i cant connect from there (wich is the problem D:), but ill try to send from work or school...
as far as i noticed it happens only when i try to connect from my home pc to "www.quadropolis.us".
any other website like "www.hotmail.com", "www.google.nl", "www.sauerbraten.org" or even just a clansite like "www.wsclan.ws" just works, no problem at all :S.
Im using Fire Fox as webbrowser. Havent checked if i can connect with Internet Explorer, even tough im using Fire Fox already for longer then 2 months (so that shouldnt be the problem).

Thanks already for helping :D!

could be something similar to the incident i had a few days back when i couldn't connect to gamesurge at all.

open up cmd and try doing "ipconfig /flushdns", then try to connect shortly after

This makes me wonder if changing dns servers works.
Here are two:
OpenDNS
Google DNS

also, don't forget to flush your dns before trying one of these :)

srbs

COMODO also maintains a secure DNS for those interested, but i never actually tried it.

http://www.comodo.com/secure-dns/

try http://www.quadropolis.us/

I don't expect that to work tbh, but whatever ;)

Ah, and the traceroute is somewhat weird as well, but that shouldn't be a problem. Might be your ISP.