Link juice is a colloquial term in the SEO world that refers to the power or equity passed to a site via links from external or internal sources. This power is interpreted as a vote of recommendation toward your site and is one of the most important factors in determining your site’s search ranking (and PageRank).
There are many ways to earn links from the web through direct and indirect efforts. Direct effort refers to link building strategies, such as social bookmarking, blog commenting, guest posting, social media marketing, press release publishing, forum commenting, document sharing and so on. The indirect effort is gained from presenting excellent content on your site that causes readers to share it around the web, linking the pages naturally. The link equity that passes from these sites to your site is the link juice, and this link juice differs in its authority depending on the sites linking to you.
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