Tool to view response headers


What is the best way to view the HTTP response headers from a request against a particular URL? Telnet or is there some other really good command or tool?

Best Solution

I find that Fiddler is my weapon of choice, although there are firefox plugins as well. Fiddler will show you all the HTTP Requests, their response status, all the headers, with different views (raw, hex, image), a timeline view, HTTPS Connects, everything.