Also known as on-demand loading, Lazy Loading is a technique for optimizing online content. This technique, instead of loading the entire web page and rendering it in one go, loads and displays a ...

When we talk about an app’s shell, we mean the minimal HTML, CSS and JavaScript powering the user interface. This should load fast and be cached — and once loaded, dynamic content can populate your ...

“As quick as possible” is the short answer. But that isn’t always as easy as it sounds. For most websites, a lot of effort will have to be made to improve page speed, so it’s important to know at what ...