Link juice refers to the SEO value or authority passed from one webpage to another through backlinks. When a high-authority website links to another page, it transfers part of its ranking power, commonly known as link juice. Factors such as page authority, relevance, anchor text, and link placement influence how much link juice is passed. Understanding link juice helps SEO professionals build effective internal linking structures and acquire valuable external backlinks. Proper distribution of link juice improves keyword rankings, crawlability, and overall site authority. Managing link juice correctly is essential for sustainable SEO growth.