What is the role of Usability testing in Web testing?

Hi friends,
Usability testing is a way to see how system is easily usable by the end users. It basically verifies the interface of website and test whether application is user friendly or not. It identifies how the customer will feel comfortable in using the software. Usability Testing not only test Look and feel it also test in how many steps customer will reach their goals

Benefits of Usability Testing

Learn if participants are able to complete specified tasks successfully and
Identify how long it takes to complete specified tasks
Find out how satisfied participants are with your Web site or other product
Identify the changes required to improve user performance and satisfaction
And analyze the performance to see if it meets your usability objective