A backlink is an incoming link from one website to another, serving as a key factor in improving a site’s ranking on search engine results pages (SERPs). When a website links to your content, it signals to search engines that your site is credible and relevant, which can positively impact its visibility. The more high-quality backlinks a website has, the better its chances of ranking higher in search results. Backlinks are an essential part of SEO strategy, as they help increase authority, drive referral traffic, and improve overall online presence, making them valuable for digital marketing success.