A backlink is an inbound link — when an external website links to a page on your site. Backlinks are one of the most significant ranking factors in SEO because they signal to search engines that other sites find your content credible and valuable. Not all backlinks are equal: links from authoritative, relevant websites carry far more weight than links from low-quality or unrelated sources. Building a strong backlink profile is a core component of off-page SEO.
