Lazy Load is a technique used in web design and development to shorten the loading time of a web page and improve performance. With this method, images and other media content are not loaded until they appear in the visible area of the browser. This can be especially useful if a page contains many images or videos that are not immediately visible when the web page is opened.
How Lazy Load works
Lazy Load works on the basis of JavaScript or jQuery to detect when a particular element enters the visible area of the browser. As soon as the user scrolls or navigates the page, the corresponding images or media elements are reloaded and displayed. This can significantly reduce page load time while reducing server load by not having to retrieve all resources at once.
Advantages of the use of Lazy Load
- Reduced loading time: By reloading images and other media content only when they are needed, the loading time of a web page is significantly reduced. This leads to improved usability and performance of the website.
- Reduction of data consumption: Especially for mobile users with limited data volume or a poor internet connection, lazy load can be advantageous, as not all content of a website is loaded immediately and thus less data is consumed.
- Improved SEO ranking: Since web pages with a faster load time are preferred by search engines like Google, using Lazy Load can help improve a website's SEO ranking.
- Reduction of server load: Since the content is not all loaded at the same time, the load on the server and the bandwidth used to retrieve the resources is reduced.
Disadvantages of Lazy Load
Despite the numerous advantages, there are also some disadvantages to using Lazy Load. Since this technique is based on JavaScript or jQuery, users who have disabled these scripting languages in their browser may experience problems viewing content. Also, implementing lazy load can cause complications with dynamically loaded content such as AJAX or Infinite Scroll.
