To me it seems that opencaching.no is redirected to opencaching.se which is visible by my ping test:
ping -c3
www.opencaching.noPING www-oc.shyrtol.se (83.233.249.163) 56(84) bytes of data.
--- www-oc.shyrtol.se ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2016ms
As you can see, there is no reply to the ping request. :-(
Trying without the "www" part you get a different address:
ping -c3 opencaching.no
PING opencaching.no (94.255.241.21) 56(84) bytes of data.
--- opencaching.no ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2016ms
Food for thought, me thinks.