Sometimes called inbound links, backlinks are the lifeblood of Search Engine Positioning. In order for a website to be on the top of search engines like Google without the webmaster having to pay big money for advertising, the website has to have a large number of backlinks. Backlinks are links on one website that lead back to another website. The more established, high quality, and high Page Rank the website that contains the link has, the more power it has to help the linked website with its search engine position.