A backlink, also known as an "inbound link" or "incoming link," is a link from one website to another. In the context of search engine optimization (SEO), backlinks play an important role in determining a website's search engine ranking. The more high-quality backlinks a website has, the higher it is likely to rank in search engine results pages (SERPs).
Backlinks serve as a vote of confidence for search engines, indicating that other websites consider the content on a particular site to be valuable and relevant. This is why search engines like Google use backlinks as a factor in their ranking algorithms. The quality and relevance of the linking website, as well as the relevance and context of the linked content, are also taken into account.
For website owners, acquiring backlinks from reputable, authoritative websites can be a valuable way to increase their visibility and improve their search engine rankings. However, it's important to build backlinks in a natural and ethical manner, as search engines penalize websites that engage in manipulative link building practices.