Domain Authority (DA) is a search engine ranking score developed by Moz that predicts how likely a website is to rank in search engine results pages (SERPs). It ranges from 1 to 100, with higher scores indicating a greater ability to rank.
Going Deeper: How Domain Authority Works
Domain Authority is calculated by evaluating multiple factors, including:
- Linking Root Domains – the number of unique domains linking to the site
- Total Backlinks – overall volume and quality of inbound links
- Site Structure and Internal Linking – the health of your internal architecture
- Spam Score – lower spam scores contribute to higher DA
DA is not used by Google and should not be mistaken for a Google ranking factor. However, it's widely used in SEO to compare the relative strength of websites and evaluate link-building opportunities. Higher DA sites generally have more backlinks, stronger trust signals, and longer histories of producing quality content.
Example Use Cases
- A domain with DA 60+ is considered authoritative and ideal for high-quality backlink outreach.
- A DA 20 site can still outrank a DA 70 competitor if the content is more relevant and better optimized.
- Link building strategies often prioritize acquiring backlinks from domains with higher DA to pass more ranking equity.
Elite SEO Consulting Pro Tip
“Don’t get obsessed with Domain Authority scores alone. We use DA to assess backlink quality, not to judge overall SEO health. Some low DA sites have incredible local SEO performance because they’re hyper-relevant. At Elite SEO Consulting, we cross-reference DA with traffic metrics, link quality, and topical relevance to find the most valuable backlink opportunities.”
FAQs
1. What is Domain Authority in SEO?
Domain Authority (DA) is a score created by Moz that estimates how well a website can rank in search engines. It’s based on backlink quality, site structure, and other SEO signals.
2. How is Domain Authority calculated?
Domain Authority is calculated by analyzing link profiles, root domains, and other site metrics using a machine learning algorithm. The score ranges from 1 (low) to 100 (high).
3. Does Google use Domain Authority?
No, Google does not use Moz’s Domain Authority in its ranking algorithm. DA is a third-party metric used by SEOs to estimate ranking potential and compare websites.