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What guest posts actually cost by DR/DA tier and niche competitiveness, and how to tell when a quoted rate is unrealistic in either direction.
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.
Why a lower-DA link from a relevant site can outperform a high-DA link from an unrelated one, and a practical framework for weighing relevance against authority.