W3 Total Cache is a very effective plugin for the site. This is because the W3 Total Cache offers abilities like Page Cache, Database Cache, Browser Cache, Object Cache, CDN Integration and more.
Page Cache
Let’s consider Page Cache. Page Caching creates static cache pages for each page that is loaded. So whenever the user clicks on the page again he/she will be able to load the page much faster. When page cache is enabled it significantly decreases the load time and server resource and thereby improving performance.
Browser Cache
Every time someone visits your site the browser downloads all the images, CSS, files, javascripts, in a temporary folder to enhance the website experience. So when the user navigates from page to page it will load much faster.