Website that will let me run an HTTP Trace?

I'm looking for a website that when given a URL will show you a trace of all the information that is sent when communication with this domain (e.g. HTTP headers). Specifically, I want to see how URL redirects are handled: what type of redirect is used (e.g. 301 or 302) and to what URL it is redirected to.

From web app Senseful

• You're looking for http://network-tools.com/

  The site lets you do:

  • Ping
  • DNS Lookup
  • Trace
  • WhoIs
  • URL Encode
  • URL Decode
  • Email Verify
  • and Spam Blacklist Check
  From LBushkin

• The Domain Dossier on CentralOps.net has a Service Scan option which does exactly that, among many other features.

  This is the result from stackexchange.com

  HTTP/1.1 200 OK
  Connection: close
  Date: Thu, 01 Jul 2010 21:56:15 GMT
  Server: Microsoft-IIS/6.0
  X-Powered-By: ASP.NET
  X-UA-Compatible: IE=8
  X-AspNet-Version: 2.0.50727
  X-AspNetMvc-Version: 1.0
  Cache-Control: private
  Content-Type: text/html; charset=utf-8
  Content-Length: 2121
  

  and from google.com

  HTTP/1.0 301 Moved Permanently
  Location: http://www.google.com/
  Content-Type: text/html; charset=UTF-8
  Date: Thu, 01 Jul 2010 21:57:43 GMT
  Expires: Sat, 31 Jul 2010 21:57:43 GMT
  Cache-Control: public, max-age=2592000
  Server: gws
  Content-Length: 219
  X-XSS-Protection: 1; mode=block
  

  From Shevek

• Rex Swain's HTTP Viewer

  Has an Auto-Follow Location feature.

  From Senseful