Domain-Authority is a score developed by Moz to predict how well a website is likely to rank in search engines.
DA is scored on a scale from 1 to 100, with higher scores indicating a stronger ability to rank. It is based on various factors including backlink quantity and quality, linking root domains, and overall SEO strength.
Why Domain Authority Matters:
- Competitive Benchmark – DA helps compare your domain strength with that of competitors.
- Link Building Insight – Higher DA often attracts more backlinks and guest post opportunities.
- Ranking Predictor – Although not a Google metric, DA is a strong indicator of potential search engine visibility.
- Growth Tracker – Monitoring DA over time helps measure SEO progress and authority growth.
How DA Is Calculated:
Moz uses a machine learning algorithm to evaluate multiple factors, including:
- Number of linking root domains
- Quality and relevance of backlinks
- Spam score
- MozRank and MozTrust metrics
Note: DA is not used by Google but widely accepted in the SEO industry.
Improving Your Domain Authority:
- Build high-quality backlinks from authoritative sites
- Remove toxic or spammy links
- Create link-worthy content
- Optimize on-page SEO and site structure
- Promote your site through content marketing and PR
Example:
A website with DA 75 will generally rank more easily than one with DA 20, assuming content and relevance are similar.
