“Link Juice” is a term from Search Engine Optimization (SEO) that refers to the value or authority passed from one webpage to another through hyperlinks. This "juice" helps influence how well a page ranks in search engine results (especially Google).
When website A links to website B, it passes on some of its credibility or authority — that’s the "link juice." The more trusted and relevant site A is, the more juice it passes.
Authority of the linking site (e.g., a major news site vs. a small blog)
Number of outgoing links: The more links on a page, the less juice each one gets.
Follow vs. Nofollow: Only dofollow links typically pass link juice. Nofollow links (with rel="nofollow") usually don’t.
Link placement: A link within the main content has more value than one in the footer or sidebar.
Relevance: A link from a site with related content carries more weight.
A backlink from Wikipedia to your site gives you a ton of link juice — Google sees it as a sign of trust. A link from an unknown or spammy site, on the other hand, might do little or even harm your rankings.
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