Folks, you may recall that last June we released a beta version of Netalyzr, a Java applet you can run by surfing to netalyzr.icsi.berkeley.edu (or to netalyzr.com). It measures a bunch of the properties of an end user's network access, particularly looking for transparent modifications (e.g., hidden proxies or blocking), connectivity restrictions, DNS modifications, and some security issues (e.g., whether the DNS resolver is vulnerable to the Kaminsky attack). You can see a sample report at: http://netalyzr.icsi.berkeley.edu/restore/id=example-session That launch was fairly successful (~50K users). Since then we've been working on a bunch of improvements, and today we've gone out of beta with an updated version, so you may be hearing about reports your customers have gotten from it. Also, as Netalyzr forms the foundation for a large-scale measurement study of the Internet's edge, to the degree that you pass along the word so that more people run it, that would be highly helpful with us gathering comprehensive data for the project. Thanks, Vern Vern Paxson Associate Professor EECS Department 737 Soda Hall - MC 1776 University of California Berkeley, CA, USA 94720-1776 +1 510 643-4209 vern@eecs.berkeley.edu