Let’s make 2021... fast! An annual front-end performance checklist, with everything you need to know to create fast experiences on the web today, from metrics to tooling and CSS/JavaScript techniques.

Performance clearly matters to users. For example, the most common software update on the AppStore is "Bug fixes and performance enhancements." Now that Moore's Law has ended, programmers have to work hard to get high performance for their applications. But why is performance hard to deliver? I will first explain why current approaches to evaluating and optimizing performance don't work, especially on modern hardware and for modern applications. I then present two systems that address these challenges. Stabilizer is a tool that enables statistically sound performance evaluation, making it p...

SPA is great in its own domain. But for consuming different domain it comes with its own cost, and if the API has not been designed…

How I used benchmarking, profiling, and tracing to heavily optimize a program

Though JavaScript has the highest number of developers in its community with respect to any other language on earth at this moment; there are a lot of misconceptions, shallow knowledge, bad assumption

via Chaos Engineering we discovered that there are situations where HTTP/2 will perform worse than HTTP/1.

Improve web app performance by 10x using NGINX features such as our reverse proxy server, high availability load balancer, content cache, HTTP/2, and more.