Definition

Link juice is a slang term associated with SEO and refers to the value of backlinks that sites exchange. In the SEO industry, link juice is also called "link equity". Backlinks from websites with higher authority and relevance in a given topic help a site get better rankings on the search engine results page (SERP).

Application

Link juice is used to describe and measure how much power a backlink carries to another page and making it more relevant. These links have a positive impact on the way Google ranks websites. When a search engine crawls a page, it looks at all backlinks to help determine how much authority the page has. Links from high authority sites share a domain with the landing page, leading to better rankings.