Cache Assets

Caching JavaScript, CSS, and image files is really important for making websites load faster and provide a better experience for visitors. Without caching, the browser would have to download all those files from the server every single time someone loads a new page on the website. This constant re-downloading makes websites load much slower and feel sluggish. But by using caching, the browser can temporarily store and re-use those files after downloading them once.

Caching the JavaScript files provides big benefits. JavaScript powers all the interactive buttons, menus, and other functionality on websites. But JavaScript files can often be pretty large files. Caching them lets the browser quickly re-use the cached file instead of slowly re-downloading it repeatedly. This speed boost is especially helpful for websites using lots of complex JavaScript code.

Caching the CSS files helps website pages load their styling and layout much faster too. CSS controls the visual look - things like layouts, colours, fonts and more. Without caching, the browser would need to re-download the CSS instructions for styling the page every single time. But with caching, it can quickly re-use the cached CSS instead for super fast visual loads.

Image caching is also extremely important, especially for image-heavy websites like galleries, portfolios or online stores. Image files make up a huge portion of the total data that needs downloading. Having to constantly re-download the exact same images is very wasteful and slow. But with caching, after the first visit, the browser can simply re-use the cached copies of those images instead of downloading them again from the server each time.

In simple terms, caching eliminates the constant need to re-transfer the same files over and over. It allows re-using files already downloaded once. This makes websites load much faster and feel much smoother and more responsive for visitors overall.