Web usability is crucial for gaining user trust, brand recognition, and retention, emphasizing the importance of user-centered design, which focuses on meeting user goals and requirements. The text highlights several key areas for optimizing user experience on websites, such as user journey analysis, readability, site navigability, web accessibility, and website speed, recommending various usability testing tools for each area. These tools, including Usabilla, Loop11, UsabilityHub, Juicy Studio, and others, aid in improving task performance, readability, navigation efficiency, accessibility, and overall user experience by providing insights into user interactions and feedback. Additionally, LambdaTest offers a comprehensive suite of 100+ free online tools for developers and testers to enhance productivity and streamline various web development tasks.