Does Google use Domain Authority?

No. Domain Authority is a Moz proprietary metric. Google has its own internal PageRank system, which is not publicly shared. DA is useful as a comparative benchmark — not as a direct SEO target.

What is a good Domain Authority score?

DA is relative to your competition. A DA of 30 may be strong in a niche industry but weak against news sites. Focus on having a higher DA than the sites you are competing against for specific keywords, rather than chasing an absolute number.

How do I increase my Domain Authority?

Earn high-quality backlinks from authoritative, relevant websites. Remove or disavow spammy links. Improve your internal linking structure. Publish content worth linking to. DA increases slowly — expect months, not weeks.

What is the difference between DA and DR?

Domain Authority (DA) is Moz's metric. Domain Rating (DR) is Ahrefs' equivalent. Both measure link profile strength but use different data sources and algorithms. DR is generally considered more accurate due to Ahrefs' larger backlink database.