User experience design plays a crucial role in websites by focusing on enhancing user satisfaction through improved usability and accessibility. This design discipline involves understanding the end-user's needs, motivations, and behaviors, ensuring that the website delivers a seamless and intuitive interaction. Key elements include website layout, navigation, content readability, and responsive design across devices. By prioritizing user-centered design principles, websites can increase engagement and reduce bounce rates. A strong user experience fosters customer loyalty and encourages repeat visits, making it essential for businesses and organizations aiming to achieve online success.