Info duidelijk en in real-time op:
http://hubble.cs.washington.edu/


Quote:

"At any given moment, a portion of Internet traffic ends up being routed into information "black
holes." These are situations where advertised paths exist to the destination, but messages - a
request to visit a Web site, an outgoing e-mail - get lost along the way.

Hubble is a system that operates continuously to find persistent Internet black holes as they occur.
Hubble has operated continuously since September 17, 2007. During that time, it identified 894,460
black holes and reachability problems. In the most recent quarter-hourly round, completed at 11:22
PDT, 04/14/2008, Hubble issued 85,521 traceroutes to 3,990 prefixes it identified as likely to be
experiencing problems (of 78,772 total prefixes monitored by the system). Of these, it found 2,681
prefixes to be unreachable from all its vantage points and 1,107 to be reachable from some vantage
points and not others. Below the following map, you'll find instructions on interpreting and
navigating this page. You can go here for a more detailed description of the Hubble academic
research project and its goals. Below, you can look up Hubble's current view of the reachability of
the address of your choice."