A “backlink” is one of the most used words in the world of search engine optimization (SEO). Many bloggers who have only recently started a blog or a website often struggle to understand what the term “backlink” means. In this post, I hope to offer you an understanding of what backlinks are, why they are essential to SEO, and why they are important for your online success. Backlinks are incoming links to a webpage. When a webpage links to any other page, it’s called a backlink. In the past, backlinks were the major metric for the ranking of a webpage. A page with a lot of backlinks tended to rank higher on all major search engines, including Google. This is still true to a large extent.