Is Domain Authority a Google ranking factor?

No. Domain Authority is a third-party metric created by Moz. Google does not use DA.

Why does DA correlate with ranking?

DA tries to model link-based strength. Strong sites tend to have strong link profiles, so the score often correlates with performance, but it's not the cause.

Use it for rough comparisons and outreach prioritization, not as a KPI to chase. Focus on real improvements: relevant links, content quality, and technical health.

Domain Authority: what it is (Moz), what it isn't (Google), and how to use it

Domain Authority (DA) is a score created by Moz to estimate how likely a domain is to rank, based largely on link signals.

It’s useful in the way a weather forecast is useful: it gives you a rough idea. It is not the actual weather.

The big misconception

DA is not a Google metric. Google does not have a public “domain authority” number. If someone tells you “your DA is low so Google won’t rank you,” they’re oversimplifying.

Still, DA-like scores correlate with rankings because they attempt to measure something real: link profile strength and reputation.

What DA is good for

DA works best when you use it as a comparison tool:

compare competitors in a niche
prioritize outreach targets (a link from a reputable site often matters more)
sanity-check why a new domain struggles on hard queries

It’s also useful for explaining to non-SEO stakeholders why “we published 10 blog posts” doesn’t instantly outrank established sites.

What DA is bad for

DA becomes harmful when it’s treated as a KPI:

chasing DA leads to chasing low-quality links
people buy links purely to boost a number
teams stop improving content and UX because they’re obsessed with a score

If your DA went up but your organic traffic didn’t, your strategy probably drifted into vanity metrics.

DA vs DR vs “authority” in general

Different tools have different authority scores (DA, DR, AS, etc.). They are not interchangeable. They use different crawlers, different link graphs, and different weights.

The common truth is simpler: reputable sites earn links naturally. The score is a reflection, not the cause.

A healthier way to think about authority

If you want to build real authority:

publish pages that answer real queries completely
earn mentions from relevant sites, not random directories
keep your technical SEO clean so crawlers can index the best version of your pages

If you’re not sure where to start, a technical + on-page baseline audit helps: SEO Audit Tool.

Link back to the glossary

One-line definition: Domain Authority in the Glossary.