Domain Authority
Domain Authority (DA) is a Moz-developed metric (1-100) predicting a website's ranking potential based on link equity, serving as a comparative tool but not an official Google ranking factor.
Definition
Domain Authority (DA) is a proprietary search engine ranking score developed by Moz that predicts how likely a website is to rank in search engine result pages (SERPs). Scored on a logarithmic scale from 1 to 100, a higher DA score indicates a greater likelihood of ranking. Moz calculates DA by evaluating numerous factors, including linking root domains, the total number of links, and the quality of those links. It's crucial to understand that DA is a third-party metric and not an official Google ranking factor. Google uses its own complex, secret algorithms to determine authority.
However, Domain Authority serves as a valuable comparative metric for SEOs to gauge a website's overall link equity and relative strength against competitors, especially during link building outreach or competitive analysis in the 2024-2026 SEO landscape. Improving DA typically involves acquiring high-quality backlinks from authoritative sources and maintaining a strong, relevant content profile, which inherently aligns with Google's quality signals.
Why It Matters
While not a direct Google ranking factor, Domain Authority provides SEOs with a widely recognized benchmark for evaluating a website's relative strength and trustworthiness in the competitive landscape.
It's particularly useful for strategic planning, such as identifying strong link building targets or assessing the competitive advantage of other sites in your niche.
Example
When "TravelBloggers.com" wants to find guest posting opportunities, they filter potential sites by Domain Authority. They aim for sites with a DA of 40 or higher, knowing these sites generally have stronger backlink profiles and are more likely to pass valuable link equity. They wouldn't waste time pitching a site with a DA of 10, as it likely wouldn't provide the SEO benefit they seek and could potentially be a low-quality site that might even incur a Google Penalty if linked to excessively.
Check if your site gets this right
Run a free audit and get AI-powered fix suggestions in 30 seconds.
Run a free audit