WARNING! Only use this if you're OK with all your measurements to be recorded by this instance of ShowSlow and displayed at http://www.showslow.com/
You can also install ShowSlow on your own server to limit the risk.

Set these Firefox preferences on about:config page:

YSlow

Yslow has to be configured to send data to a Show Slow instance

To send metrics to your instance located at http://www.showslow.com/, set these Firefox preferences:

Page Speed

Page Speed is configured to send metrics to showslow.com by default.

To send metrics to your instance located at http://www.showslow.com/, set these Firefox preferences:

dynaTrace AJAX Edition 2.0 Beta 1

dynaTrace AJAX Edition is configured to upload send metrics to showslow.com when clicking on the Upload your results to showslow.com link in the dynaTrace AJAX Performance Report.

The uploaded beacon contains information about the dynaTrace AJAX Ranks which includes overall page rank and rankings for Browser Caching, Network, JavaScript and Server-Side Activities.

As for the Beta 1, the upload URL is not configurable to a different instance than www.showslow.com. It is expected to change in Beta 2, which is expected to be released in September, 2010.

More metrics

For more information about different beacons supported by this instance of ShowSlow, see beacons page

Additional documentation

You can find more detailed documentation on configuring tools to be sending data to Show Slow on our wiki here.