A backlink, also known as an inbound link, is a hyperlink that directs a user from one website to another. These links are an essential part of search engine optimization (SEO) as they signal to search engines that a website is reputable and relevant. Backlinks are like votes of confidence from one website to another, indicating that the linked website is a valuable source of information. The quality and quantity of backlinks can greatly impact a website’s search engine ranking, making them a crucial aspect of online marketing and website visibility.