SEO is the process of optimizing a website for Google search with the goal of earning higher web traffic levels and improving the visibility of the site. The practice of SEO includes On-Page optimization (which refers to all the things you can do on your website to make it more visible to Google), technical SEO (which involves optimizing the technical aspects of your website, such as page speed and mobile responsiveness), and Off-Page optimization (which refers to all the things you can do off your website to make it more visible to Google).