What is a link juice?
The link juice is a power or value passed to a certain website via links from one page to another or from internal sources. It is a quality of hyperlinks. The power or a value is considered as a vote of a website. It is a very important part of SEO strategy and essential factor in PageRank.
There are many ways how to get more link juice to a website. For example, by creating a valuable and trustworthy content or by promoting a brand.