urs, i'm checking to see if each of the domains in our list
resolves or not. I've done eight such probes, and here's the first look at
things:

 473 domains have a DNS uptime of between 0% and 4%
   0 domains have a DNS uptime of between 5% and 9%
   6 domains have a DNS uptime of between 10% and 14%
   0 domains have a DNS uptime of between 15% and 19%
   0 domains have a DNS uptime of between 20% and 24%
   0 domains have a DNS uptime of between 25% and 29%
   0 domains have a DNS uptime of between 30% and 34%
   1 domains have a DNS uptime of between 35% and 39%
   0 domains have a DNS uptime of between 40% and 44%
   0 domains have a DNS uptime of between 45% and 49%
   2 domains have a DNS uptime of between 50% and 54%
   0 domains have a DNS uptime of between 55% and 59%
   1 domains have a DNS uptime of between 60% and 64%
   0 domains have a DNS uptime of between 65% and 69%
   0 domains have a DNS uptime of between 70% and 74%
   1 domains have a DNS uptime of between 75% and 79%
   0 domains have a DNS uptime of between 80% and 84%
  16 domains have a DNS uptime of between 85% and 89%
   0 domains have a DNS uptime of between 90% and 94%
   0 domains have a DNS uptime of between 95% and 99%
1869 domains have a DNS uptime of 100%