Disable HTTP Trace Method in IIS - no one likes a parrot
The primary function of the HTTP trace method (aka trace or track verbs) is as a diagnostic tool used in web servers. It works by echoing back the received request so that the client can see what changes or additions have been made by intermediate servers. Essentially, when a client sends a TRACE request to a server, the server responds by sending back the exact request it received, including all the headers.