Just as performance of humans is important in every phase of life, performance of websites is important to user experience too. One of the most important factors of performance is the speed at which the website loads. Slow page load times lead to customers abandoning pages and clicking the back button, and possibly switching to competitors’ sites. It has been researched that if a page does not load within 3 to 5 seconds, people give up on the site. Therefore, slow page loading is one of the major causes of a poor user experience. Even if you have the best content, image and designing on your page, it is worth nothing if it loads slow and leads to customers leaving the site, without even waiting to take a look at it.