Testing the performance of a new system before website's migration

Situation: the new server for the site is ready. How can I be sure the sizing is being made correctly and the machine is able to improve the performance of the previous server?

Site Speed

With a simple (and stupid) trick!

Add a hidden iframe to the live site that makes the same request to your development system. (ex: www.site.com/some/url/123 -> dev.site.com/some/url/123/).

Place the code in a common section, that is repeated in all site pages (es. footer).

You can use a simple javascript code, like this snippet:

Published: May 12 2015