A lot of people know that making a website load faster is important for conversion rate optimization. However, many designers and developers are not aware that there are actually different ways to do this! One way is by using lazy loading. In this article, we will discuss what lazy loading is and how it can help improve site speed.
Lazy Loading in Web Development
Lazy loading involves delaying the loading of images, scripts, etc until they come into view on the page.
Image Lazy loading is a technique that loads images when they are visible to the user rather than before. This means that if you have a lot of images on your website, instead of downloading all the images at once, they download as needed in order to maintain fast page load times. The end result is an improved conversion rate for your customers because more pages are able to load quickly!
A great example where lazy loading has been implemented can be found on YouTube videos; when the user clicks play button, HTML video player will show around 30% of the video without downloading whole clip. As user scrolls down/up site browser window more parts are loaded automatically and finally 100% view.
Lazy Loading in Software Development
In software development, lazy loading is a technique used in programming languages to defer the initialization of an object until it’s first time use. It may also refer to delayed loading data from external sources such as database and file system into memory. Another definition for this term could be when you load only what’s needed on web page or app screen instead of all content at once.