CDN
Going back to our racing analogy, leveraging caching and a CDN equals racing faster around the track.
These are the two basic building blocks of efficient page rendering, but there are many more techniques available. On WordPress, the following can be achieved with one or more plugins again, WP Rocket and Imagify are a particularly good combination for achieving a lot of this:
Asynchronous andor lazy loading of scripts. This is basically a fancy way of referring to loading multiple things at once or waiting until later to load something that isn't needed.
Basically, retrieving data about links ahead of time, rather germany mobile database than waiting for the user to click on them.
Lazy loading. Ironically, this concept exists for page speed purposes, but by default, most browsers load all images on a page, even those that aren't visible until the user scrolls down to them. Implementing lazy loading means telling the browser to defer loading and wait to load those unseen images until the user actually scrolls there.
Serve images in next-gen formats. New image formats like WebP can be loaded faster by browsers than older JPEG and PNG formats. But be aware that not all browsers can support these new formats — so be sure to use a plugin that can serve the next-gen versions to browsers that support them, but the older versions to browsers that don’t. WP Rocket can do this when paired with Imagify.