Checker Maven is offline as of 10 Sept 2012 at bout 9 AM HST. The host provider, GoDaddy, was hacked by the hacker group "Anonymous" and apparently all of the millions of web sites hosted by GoDaddy are down, Checker Maven among them.
Hopefully GoDaddy will get service restored soon.
"Anonymous" was trying to make a political point but I fail to see how inconveniencing millions will aid their cause.
EDIT: Site is back up by about noon HST.