What Are Backlinks and Why Do They Matter? A backlink is simply a link from one website to another. When a wedding venue links to your DJ services page or when a photographer's blog mentions your business with a link, that's a backlink. But these aren't just digital handshakes—they're powerful SEO tools that can transform your online visibility. The SEO Power of Backlinks Search engines like Google view backlinks as votes of confidence. When reputable websites link to your bu