From NirSoft Freeware:
HTTPNetworkSniffer is a packet sniffer tool that captures all HTTP requests or a response sent between the Web browser and the Web server and displays them in a simple table. For every HTTP request, the following information is displayed- Host Name, HTTP method (GET, POST, HEAD), URL Path, User Agent, Response Code, Response String, Content Type, Referee, Content Encoding, Transfer Encoding, Server Name, Content Length, and Cookie String.
What's new in this version:
Version 1.30 has added 'Response Time' column, which calculates and displays the time (in milliseconds) passed between the moment that the client sent the HTTP request and the moment that the HTTP server response received by the client.