Tuesday, April 01, 2008

pickaproxy.com lookups

pickaproxy.com was updated a few months ago to provide more detailed lookup data on Tor network nodes by using our showmyip.com lookup service. (see https://www.torproject.org/ for more details on the Tor network)

We still have quite a bit of work in progress on this, but what we discovered recently was that we could identify "bridge relay" users, which surprised us. Bridge relay users of the Tor network do not have any information about them published publicly, so we presumed they would be undetectable. However, they are quite easily detectable, and we are now identifying them separately from the other "relay" and "exit" nodes that make up the Tor network. A quick glance shows that about 40% of the current Tor network users are bridge relays, and I would expect this percentage to climb over time.

We also discovered that we could identify previous Tor network users who are no longer users, and so have added this information to our lookup data. One of our subscribers was using an (outdated) list of Tor network IP Addresses, and asked why we were not identifying 1 of these IP Addresses as a Tor node. We found that it was last seen back in December, and thought that this would be useful information to be made public.

No comments: