A backlink, often referred to as an inbound link or incoming link, is a hyperlink that connects from one website to a page on another website. In the context of search engine optimization (SEO), backlinks are considered as votes of confidence from one site to another and play a crucial role in determining the ranking of a website on search engine result pages (SERPs). The quality and quantity of backlinks are indicative of the popularity or importance of the website being linked to, which search engines use as one of the key metrics for ranking web pages. High-quality backlinks, coming from reputable and relevant websites, not only help in improving the visibility of a website in search results but also drive referral traffic, enhance credibility, and potentially increase the website’s domain authority. However, not all backlinks are beneficial; links from spammy or irrelevant sites can harm a website’s SEO. Therefore, obtaining backlinks should be a part of a comprehensive SEO strategy that focuses on building relationships with other reputable websites and creating valuable content that naturally encourages other sites to link back.