Today, the user experience of websites should be very pleasant and the websites should be living entities. People expect nothing less than smooth transitions and unambiguous responsive actions.
Most folks expect near-instant access to your website -- so much so that they become 32% more likely to leave your site after viewing a single page when loading time increases from one to three ...
Google PageSpeed Insights is the gold standard when it comes to checking website loading time. But that’s primarily designed for developers. Non-techies can look at Pingdom and GiftOfSpeed instead.