Compress Components

What is Compression and How Does it Work?

Compressing files, whether they are an audio, image, or video, is a great method to reduce the amount of a web page’s “weight,” or size of all the on-page content. By reducing file size, you effectively reduce the amount of time it takes to download and render elements, which decreases the page load time and provides a better, more seamless experience for users.

At a high level, data compression is an algorithm that works by rearranging the structure of file to use fewer bits, bytes, etc., of data. You have more than like come across algorithms in your everyday life. Common examples include mpeg, jpeg, and zip, but there are many others. There are a couple of distinct types of compression, lossy and lossless. Depending on the type of file you are working with, one type is typically preferred over another. As an example, lossy compression is typically used for images, audio, and video files because its purpose is to reduce file size by removing unnecessary information. However, a downside, especially for audio files, is a drop in audio quality. On the other hand, lossy compression reduces file size without removing information. A common example of this is the ZIP format.

The Benefits of Compressing Web Page Components

It is easy to want to provide the highest quality files for your users on your web pages, but you must consider the trade-off of quality and user experience. For example, a lot of websites use high-resolution images without considering the impact to the page load speed. They make for great imagery, but they could be causing potential performance bottlenecks. One way to avoid that is to resize larger images, however, in addition to resizing images, compressing images can further reduce download times without affecting overall image quality. Ensure all the elements on your pages, from scripts, images, and video are optimized and compressed where possible.



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