Short definition
A third-party score that estimates a website’s overall link strength.
Beginner In plain English
Domain authority is a number some SEO tools use to guess how strong a website is, mostly based on its links.
Professional How pros use it
Metrics like Moz DA, Ahrefs DR or Semrush Authority Score are tool-specific estimates, not Google metrics. Use them to compare sites quickly, never as a goal or a guarantee of rankings.
Examples
- Comparing link prospects by their authority score.
- A DR of 45 meaning nothing to Google directly.
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