Clientside optimization for mobile devices

We all encounter problems with site loading speeds when using the mobile internet. Solving these problems is imperative, especially for sites with heavy traffic. Several basic client-side optimisation techniques are well known and effective. But we need to continue experimenting, improving infrastructure and using new browser APIs. In this talk I will tell you about our experiments results, development approaches and new metrics, and I will also try to answer the question of how to measure users’ happiness.