Usability testing is a way of finding out how easy it is for people to use a website, app, or product. During usability testing, people are asked to use the website, app, or product while someone watches and takes notes. The person doing the usability testing then looks at the notes to see how easy it was for people to use the website, app, or product and what changes need to be made to make it better. Usability testing helps make websites, apps, and products more user-friendly.