Domain rating / authority

Domain rating (Ahrefs’ DR) and domain authority (Moz’s DA) are third-party scores, typically 0 to 100, that estimate the strength of a site’s backlink profile. They are convenient for comparing sites and tracking link growth, but they are invented by SEO tools, not used by Google, so they should inform strategy without becoming the goal.

How to use it well

These scores are logarithmic, so moving from 20 to 30 is far easier than 70 to 80, and they measure only link strength — not relevance, content quality, or actual rankings. Their best use is comparative: benchmarking your link profile against direct competitors, vetting a prospective link source’s strength, or watching your own trend over time. Their worst use is as a target in itself, which invites low-quality link building that raises a score while doing nothing for real rankings. Judge link opportunities by relevance and genuine authority first, using the score as one input.

Where it applies

• Competitive benchmarking — sizing your link authority against rivals.
• Link prospecting — a quick filter for the strength of potential referring domains.
• Reporting — a simple trend line for link-profile growth, caveated as a proxy.

What matters from each seat

• In-house — use it comparatively; don’t set a DR/DA number as a KPI.
• Brand and leadership — understand it’s a third-party estimate, not a Google metric, before it drives decisions.
• Agency and consulting — frame the score honestly as a proxy, and tie link work to rankings and traffic instead.