As a faster means to confirming your headers and all the other data transferred during an HTTP session, try using Ethereal. It's a packet-sniffer; it's been ported to several platforms, and has some very cool abilities. After capturing an HTTP session or two, you can scroll through all the sniffed packets and get a blow-by-blow analysis of the session including (you guessed it) headers sent by the browser and headers sent by the server, as well as document text. Much faster than waiting for Netcraft to recrawl your server.

I discovered Ethereal over this weekend, and it's now an essential tool in my toolbox. I'll be using it for my own CGI programming. Definitely. Find it here.

Good luck on satisfying your client.

-Shawn / (P^h) Phaysis
If idle hands are the tools of the devil, are idol tools the hands of god?