Site blocked, but not with hosts, parental, littlesnitch or firewall

[Loa]

Hello,

On her account, my wife somehow (magically) prevented my computer from accessing my website, on which our mail also is. Everything to do with my website and it's many subdomains (including our mail) isn't accessible by the computer, on every account (including root!).

My website works just fine when we use other computers to access it, including, again, the webmail.

I checked all of the usual suspects: hosts file (only the four default entries), parental control (not activated), little snitch (currently deactivated), my computer's firewall (off) and my router's firewall (off). Everything is clean. I'm stumped.

Now why can't we access my website???

Thanks

Loa