We're Breaking the Mobile Web

A presentation at Bristol Web Performance Meetup in in Bristol, UK by Simon Hearne

We rely on our customer's browser to process large JavaScript applications, communicate in real-time and execute code from tens of third-parties. The increasing diversity of customer devices and network connections means that ensuring a fast experience for all customers is nearly impossible: we understand web performance over the network, but in 2016 the CPU is our biggest challenge.

In this talk Simon demonstrates the impact of device diversity on site speed on live sites and shares tips and tools that he uses when diagnosing these issues.