A website is built of hundreds of components. Everything from the main navigation to the copyright at the bottom of the website impacts the user experience. As each person is different, so is their perception of a website. Some might not like the menu bar at all, and some might find the same menu bar aesthetically pleasing. The goal is to figure out what the majority of your visitors feel about it. Everything on a website can be optimized. You can reduce the load time, change the interface, or order a complete overhaul of a website just to improve the user experience. Every aspect of the website can be changed to optimize the user experience and get more conversions.