What Is Domain Authority? What It Means for Search and AI Visibility
Domain Authority (DA) – A score from 0 to 100, developed by Moz, that predicts how likely a website is to rank well in search results based on the quality and quantity of other sites linking to it.
Domain Authority is a score from 0 to 100, created by the SEO company Moz, that estimates how likely a website is to rank well in Google search results. It’s calculated based on the quality and quantity of backlinks pointing to the site. A local restaurant’s website might have a DA of 15, while a major news outlet might score 90. The number is useful mainly as a way to compare a business against its direct competitors.
It’s worth knowing that DA is a third-party metric, not something Google uses internally. Google has its own signals for authority. But DA tracks closely enough with real-world ranking performance that SEO professionals use it as a shorthand. If a competitor has a DA of 35 and the business has a DA of 12, that gap usually reflects a real difference in how Google treats the two sites, and closing it typically requires building more quality backlinks over time.
The factors that drive Domain Authority, mostly backlinks from credible sources, are also the factors that make AI platforms like ChatGPT and Google AI more confident in recommending a business. A site that’s frequently referenced by local press and industry directories tends to score well on both fronts.
For a local business, a realistic path to improving DA is to earn links from relevant local sources: getting mentioned in community news, joining a business association that links to member sites, publishing content that industry blogs want to reference, or sponsoring local events that get covered online. These same activities build AI visibility at the same time, because they create exactly the kind of independent third-party references that AI models rely on when deciding which businesses to recommend.
Domain Authority is a useful number to track over time, but it’s more of a side effect than a goal. Chasing the score directly leads to shortcuts that backfire. Building genuine authority through real-world activity, quality content, and community presence is what moves both the number and the business results behind it.
Frequently Asked Questions
What is a good Domain Authority score?
It depends on the competitive landscape. A local bakery with a DA of 25 might be the strongest site in its market, while a national brand might need 60+ to compete. The number matters most in comparison to direct competitors, not as an absolute.
Is Domain Authority a Google ranking factor?
No. Domain Authority is a third-party metric created by Moz. Google has its own internal signals for measuring site authority. But DA is a useful proxy because it correlates well with actual ranking performance, so SEO professionals use it as a benchmark.
Does Domain Authority affect AI recommendations?
AI models don't look at a DA score directly, but the underlying factors that drive DA, like backlinks from credible sources and mentions in authoritative publications, are exactly the signals that make AI platforms more confident in recommending a business.
Does ChatGPT recommend your business?
Enter a website URL. Reachd checks how ChatGPT responds to real customer queries and shows a visibility score in about 30 seconds.