Animation Performance 101: Measuring with Dev Tools

"For most developers, code caching should “just work”. It works best, like any cache, when things stay unchanged, and works on heuristics which can change between versions. Nevertheless, code caching does have behaviors that can be used, and limitations which can be avoided, and careful analysis using chrome://tracing can help you tweak and optimize the use of caches by your web app."

Shows how different HTML attributes behave in commonly used screen readers.

"A set of questions and tasks to guide you on your speaking path. Answer these to up your chances of being selected to speak at a conference or event."

"Every bit of JavaScript you add to a site is a potential way in for a hacker. This is doubly true if that JavaScript is hosted by someone else, such as on a public CDN. Subresource Integrity is a browser feature you can use to make sure that the code being used is exactly what you intended."

"Web performance can mean the difference in someone being able to get what they need from government or abandoning their task completely."

"After a lot of trialing we have settled (for now at least) on moving our rendering tier to React and Emotion. This will doubtless generate a new set of challenges, but we expect that they should at least solve the set we have right now."

"Our hypothesis was proven. The simpler and faster web player outperformed the old web player in all key metrics."