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A backlink is a link from one website to another -- and it's one of the strongest ranking signals Google uses. Here's what backlinks actually are, why they matter, and how to start building them.
Domain Authority (Moz) and Domain Rating (Ahrefs) both score site authority 0-100, but they're built by different companies on different data. Here's how they actually differ and which to trust.
Do-follow and no-follow links aren't as simple as "counts vs doesn't count." Here's how Google actually treats each attribute today, and why a healthy backlink profile needs both.
Every free and low-cost way to check a site's Domain Authority and Domain Rating, what these scores actually measure, and a worked comparison example.