This tool lets you test web pages that are directly accessible as an URL from the Internet. If you need to test a page inside of a firewall or something more complicated than a web page (an authenticated product like webmail for example) please download the desktop version of PageTest which this is based on.
Here are some useful resources that will help you gett the most out of Pagetest:
- Video tutorial by David Artz on using Pagetest
- Walkthrough by Ryan Doherty examining the impact of optimization on performance
- Aptimize blog - interesting tools for automating optimization and the host of the New Zealand test location
- My Blog
We now have a forums section of the site for discussing test results, getting optimization help, discussing techniques and offering feedback
about the site.