SEO backlinks are part of off-page SEO best practice. Backlinks are one of the highest ranking factors for Google right now. The internet is made up of content, and links between content. A search engine will index a website and web page; ascertain how relevant the content is for certain queries, which in essence, is a unique system for ranking. The quality and number of backlinks pointing to a page became a factor in determining that page’s rank. Backlinks represent a vote of confidence from one site to another. The more quality backlinks a web page earns, the more valuable it is in the eyes of the search engine, and the more likely it is to achieve a high ranking.