Site usability refers to the ease of use and efficiency of a website, with the goal of creating a positive user experience for visitors. A website with good usability is intuitive, easy to navigate, and provides a seamless experience for users.

Overall, site usability is essential for creating a positive user experience and driving engagement and conversions on a website. A focus on usability in website design can lead to increased engagement, retention, and conversion rates, as well as improved brand perception and customer loyalty.