Backlink
A link from one website to another; a core ranking and trust signal.
A backlink is a hyperlink on one website that points to another. Search engines treat backlinks as votes of confidence: pages with relevant, authoritative backlinks tend to rank higher. Not all backlinks are equal — relevance, authority, anchor text and link type all shape how much value a backlink passes.
Because backlinks can be removed or changed at any time, monitoring them is essential to protect the equity you have earned.