Today, I gave a talk at the JFokus conference in Stockholm on the topic “The web performance testing toolbox”. This is a list of links to some of the tools mentioned during the talk.
Loading and rendering speed
- YSlow / Pagespeed
 - Webpagetest
 - SPOF-O-Matic
 - The Critical path (Pagespeed online)
 - GTMetrics/ShowSlow
 
Real User monitoring
Maintaining a responsive UI
- dynaTrace AJAX Edition
 - Chrome developer tools (Timeline view)
 
Mobile
- Mobitest / Webpagetest (Dulles only)
 - Chrome remote debugging (Android)
 - Safari remote debugging (IOS)
 
And if you care at all about web performance, you just have to read Joshua Bixbys post: Web Performance 101: An opinionated guide to the 22 links every developer should read