[dorfsmay]

It's used to send an http/HTTPS reqeuests, controlling every aspect of it, form headers to cookies, to ignoring/not SSL certs, and has advanced debugging option to show you the entire dialog (-sv) and use a different IP address (--resolve to test you firewalls, LBs etc...).

[sglane]

It sure does quite a lot and I love it, but I wish it could handle SIP and WebSockets without too much trouble.