A simple web performance optimization example that was used during the "Faster Mobile Website" talk given at UpFront Conference on the 19th May in Manchester, UK.
In order to see a before and after comparison, please see the webpagetest.org results below:
Before optimization: http://www.webpagetest.org/result/150505_HB_PWY/
After optimization: http://www.webpagetest.org/result/150505_J5_PVP/