Authority Score

What Is Authority Score?

It’s important to understand: an Authority Score of 35 says little on its own — it only becomes meaningful when compared to your top competitors. If they score 65, 72, and 89, you know your playing field. Use the score as a monitoring tool, not a target: if it rises, the direction is right; if it falls, it’s worth checking for possible backlink losses or other issues.

Authority Score is a metric for evaluating the overall strength and trustworthiness of a website or domain — however, Authority Score is not a uniformly defined term, but is calculated differently depending on the SEO tool. Moz has Domain Authority (DA), Ahrefs has Domain Rating (DR), Semrush has Authority Score, Sistrix has a Visibility Index system. All of these metrics share the same goal: to measure how “strong” or “authoritative” a domain is in Google’s eyes. They are proxy metrics — they don’t measure exactly how Google evaluates a domain, but they correlate with rankings.

Technically, most Authority Scores are based on backlink profiles and other publicly available signals. Domain Authority (DA, scale 1–100) is calculated by Moz primarily based on backlinks — but internal factors also play a role. Authority Scores are relative metrics: it’s not particularly meaningful to say “my DA is 35” — but to say “my DA is 35, while my top-3 competitors are 65, 72, 89” is more informative. Important: these metrics are approximations, not direct factors in the Google algorithm.

In practice, use Authority Scores as a monitoring tool, not a target. If your Authority Score rises, that’s usually a good sign (more backlinks, more visibility). If it falls, that could indicate a problem (backlink loss, penalties). Compare your score with that of your competitors to see where you stand in the field. But focus on doing the things that raise the score (better content, backlinks, page speed) — not chasing the score as an end goal. Authority Score is a compass, not the destination itself.