http://nitro.ucsc.edu/
TCP/Web100 Network Diagnostic Tool v5.3.3d
click START to begin
Checking for Middleboxes . . . . . . . . . . . . . . . . . . Done
running 10s outbound test (client to server) . . . . . 157.06Kb/s
running 10s inbound test (server to client) . . . . . . 300.52kb/s
Your PC is connected to a Cable/DSL modem
Information: Other network traffic is congesting the link