Discover visitor page load times with Boomerang

Created by the same team that also brought us the indispensable YSlow tests, Boomerang allows us to collect the page load times from actual visitors.

While performing page load testing on your development machines using Firebug, YSlow, and other tools is important, nothing beats getting real world “perceived” page load times from your real visitors, along with other useful metrics.

The software works by adding some javascript to the page(s) that you’d like to benchmark and then deploying some php or other code that will save the incoming results into a database. The website below offers example code:

Try Boomerang.