
Viewport, resolution, diagonal screen size and DPI for the most popular smartphones
Here is the resolution, screen size, DPI and Viewport for the most popular smartphones in use in 2019, as well as the most common diagonal screen size in 35 countries.

Measuring page weight
Measuring the weight of a web page used to be a simple matter of waiting for the page to finish loading, then adding up the size of its resources. This article will talk about ways to measure page weight in a world of mobile devices and rich app-like sites.

Understanding web page weight
Page weight is the gravity of the web - a relentless downwards drag, ever present and utterly unavoidable. Understanding it is a critical aspect of a successful web strategy.

Reducing page weight
This article summarizes the most common techniques that will help you keep your web pages light and lean, starting with image optimization, and closing off with a brief set of guidelines for the technical and non-technical alike.

JavaScript server-side rendering with device detection
Server-side rendering (SSR) can solve some of the same challenges that frameworks face with mobile clients. You've already gone to the trouble of setting up a server-side solution, why not get everything you can out of it?