On-page SEO, or on-site SEO, refers to the practice of optimizing individual web pages to rank higher and earn more relevant traffic in search engines. This form of search engine optimization focuses on both the content and HTML source code of a page that can be optimized, as opposed to off-page SEO which refers to links and other external signals. Key elements of on-page SEO include optimizing title tags, content, internal links, and URLs. It also involves ensuring that the website has a high level of expertise, authoritativeness, and trustworthiness (E-A-T). This is achieved by creating quality content that is original, valuable, and informative, and that answers the user’s search query effectively. Additionally, on-page SEO includes optimizing meta descriptions, header tags, and images by using descriptive, keyword-rich file names and alt text. It’s also important to ensure that the site has a responsive design, loads quickly, and provides a good user experience. On-page SEO is a critical component of digital marketing, as it helps search engines understand what the webpage is about and thus, increases the chances of ranking well for targeted keywords.