What Is Domain Authority? Does Google Use It and How to Improve It

What is domain authority?

Domain authority is a score from 1 to 100, created by Moz, that predicts how well a domain could rank in search results. Google does not use it. Similar metrics, such as Ahrefs Domain Rating and Semrush Authority Score, follow the same idea and come from each tool's own link data.

Getting this definition right matters. Domain authority is not Google's opinion of your site. It is a benchmark that a third-party tool calculates, mostly from your backlink profile.

Our team uses the score as a compass in SEO projects. However, we never treat it as the goal. The goal is organic traffic, rankings and revenue.

In this guide we explain how the score works, what it is good for and which actions truly build authority.

Does Google use domain authority?

No. Google's ranking systems have no score called domain authority. Moz says so itself: Domain Authority is not a Google ranking factor and has no direct effect on search results. Google representatives have also said many times that they do not use it.

The confusion comes from the word. Google's own documents use the idea of authority too. For example, Google's guidance on helpful content talks about expertise and trust signals. That is not a single number, though.

Google still uses links as a signal. However, it decides how much each link is worth with its own systems. So you cannot assume that a higher DA will lift your pages.

Here is the right frame. DA is a proxy metric, and it is useful because it tracks signals that Google really does reward.

Google's public stance on links is clear too. Links help discovery and evaluation, but ranking systems weigh many signals together. So no single signal decides the result.

That is why we tell clients to stop chasing the score. Work on the pages you want to rank instead. The score then rises as a side effect.

How do DA, DR, Authority Score and Trust Flow differ?

Every SEO tool looks at the links in its own database and applies its own formula. So the same site gets different numbers in different tools. Do not compare numbers across tools. Compare your site with competitors inside one tool.

The takeaway is simple. None of them is Google's internal score. Each gives an estimate, and each measures a slightly different thing.

Which one should you pick? If you have the budget, choose one as your main measure. Then use a second one as a cross-check. When both point the same way, you can move ahead with confidence.

Also, the link databases are not identical. One tool may find a link that another misses. So a single tool showing zero links does not prove you have none.

How is domain authority calculated?

Moz builds the DA score with a machine learning model. The model searches for the formula where link data best matches rankings across thousands of real search results. The strongest inputs are the number of unique domains that link to you and the quality of those links.

Also, the scale is logarithmic. So going from 20 to 30 is much easier than going from 70 to 80. The score is also relative. Even if you do nothing, it can fall when competitors earn more links.

These inputs usually matter most:

• The number of unique domains that link to you.
• The strength of those linking domains.
• Whether the links show spam signals.
• How the total link count is spread across domains.

A few strong links usually add more than many weak ones. So aim for link quality, not link count.

There is a practical result here. Still, new links do not show up in the score right away. The tool must find the link first, then update its model. This cycle can take weeks.

Moz also refreshes its model from time to time. After a refresh, scores for many sites can shift. So watch for version changes when you compare old and new numbers.

What is a good domain authority score?

There is no universal good number. What matters is how you compare with the sites you compete against. A DA of 15 can be enough for a local dental clinic. However, the same score is weak for a national online store.

Here is how we benchmark. First, we pick five or six competitors from the top ten results. Then we average their DA and place it next to yours. If the gap is small, the problem is probably not links. It is more likely content or technical health.

Here is an example calculation. Say your five competitors score 22, 25, 28, 31 and 34, so the average is 28. So if you score 24, the gap is four points. A couple of quality link campaigns could close it.

If you score 10, the situation changes. Then you should plan link building as a long program. This is only an example, and real numbers vary by industry.

The direction of the score tells you more than its absolute value. A site that climbs from 12 to 18 in six months is doing something right. So track the monthly trend instead of one reading.

Also, niche sites can win large traffic with small scores. Still, if your topical expertise is strong, you can do well even with a low DA.

Why does domain authority not equal rankings?

Rankings work at the page level. Google ranks the best page for a query, not a domain. A weak page on a high DA site can lose to a thorough, on-intent page from a low DA site.

There are three concrete reasons:

• Search intent: If a page does not answer the query, a high score will not help.
• Content quality: Thin content cannot win rankings, even on a strong domain.
• Experience: Slow or hard-to-use pages lose visitors.

That said, a strong link profile does help in general. New pages get discovered faster and enter the rankings more easily. Still, you can only use that edge with good pages.

Think of DA as a restaurant's fame in town. Fame brings customers, but a bad meal means they do not return. In search, the page itself is the meal.

So if a competitor with a lower DA passes you, do not be surprised. Most likely, that page answers the query better. Study it and learn why it wins.

In short, DA is an indicator, not an outcome. To measure outcomes, look at Search Console data.

How do you check domain authority?

You have several free and paid options. Moz Link Explorer gives a limited number of free queries. Ahrefs, Semrush and Majestic show their own scores too. When you check your own site, use the same tool and the same date range each time.

For a quick first look, try our domain value calculator. For a wider picture, our SEO checker shows page-level technical issues.

Follow these steps when you check:

1. Note your own domain score.
2. Note the scores of five competitors in the same tool.
3. Measure again on the same day each month.
4. Match score changes with the links you earned.

Take screenshots as a habit. Tools do not always keep past data available. Because of this, if you keep your own archive, you will see the trend clearly a year later.

Also, do not look only at the root domain. If you run subdomains, review their link status separately. Instead, your blog subdomain may collect links while the main site does not.

Scores can also move when the tool updates its data. So do not react to small swings. Look at the three-month trend.

How do you improve domain authority?

The only real way to improve domain authority is to earn genuine links from trusted sites. Three things support this: content that deserves links, a sound technical and internal structure that spreads those links across pages, and a recognizable brand. So there is no shortcut.

If you want to order the work, we suggest this flow:

• First, clean up the technical side: fix pages that are not crawlable, slow or duplicated.
• Then build assets that deserve links: research, tools and guides.
• After that, get those assets in front of the right people.
• Finally, use internal links to move authority to your key pages.

The order matters. If you win links for a site with technical problems, the value of those links goes to waste. Prepare the ground first.

One point deserves emphasis. Building authority is a habit, not a campaign. In practice, a site that earns a few valuable links every month grows healthier than one that grabs a hundred links once and stops.

For corporate projects, we plan this work together as part of SEO consulting.

How do quality backlinks raise domain authority?

Backlinks are the main input of DA. However, not every link carries the same weight. A relevant, editorially given link from a site with real traffic adds more than hundreds of weak directory links.

You can spot a quality link by these traits:

• The source site is relevant to your topic.
• The link sits naturally inside the content.
• The source site has a real audience.
• No payment or swap is behind the link.

We covered the basics in our guide on what backlinks are. To see which sites link to your competitors, read our competitor backlink analysis guide.

The sources that link to a rival but not to you are your most realistic opportunity list. Also, those sites already care about your industry.

Honest ways to earn links exist. Industry associations, local press, guest articles and joint projects come first. So all of them take effort, but they create lasting value.

For example, a local business can get a link from its regional chamber of commerce. That link is relevant and carries trust. Also, such institutions are usually high-authority sites.

Which link building methods are risky or harmful?

Bought links, private blog networks, automated comment links and over-optimized anchor text are risky. Google treats them as link spam. Google's spam policies clearly forbid link patterns meant to manipulate rankings.

Use this list to spot risky offers:

• "DA 50+ link packages" sold from a price list.
• Blog networks on the same IP or with the same owner.
• Bulk links in forum signatures and comments.
• The same commercial anchor text on every link.

Let us be honest here. These methods can move the score in the short term. However, when Google notices them, you lose rankings. However, a higher score does not stop traffic from falling.

What if you used these methods in the past? Do not panic first. Often Google simply ignores such links. Still, if the problem is large, check the manual actions report in Search Console.

As a precaution, ask any agency you hire for the list of link sources. Also, a provider that is not transparent is usually a warning sign.

How does content create domain authority?

Content is the raw material of links. People link only to sources that help them or deserve a citation. So the best authority investment is content that can become a reference in your field.

These content types tend to attract links:

• Original data or survey results.
• Free calculators and checking tools.
• Thorough, current and well-sourced guides.
• Industry templates and checklists.

If you cannot produce original data, document your field experience. For instance, describe the method and findings of work you did for a sector. Stay away from invented numbers, because they damage trust at once.

When you plan content, ask this question: which site would link to this page, and why? Then if you have no answer, you are producing the page for traffic only. That is fine, but do not expect links.

Content that attracts links usually answers a real problem. A calculator, for example, gets cited by writers. It helps their readers, and the writer does not have to build it.

For planning, our guide on growing traffic with content marketing will help. Also, the E-E-A-T approach strengthens the credibility of those pieces.

Does technical SEO affect domain authority?

It does not affect the score directly, but the indirect effect is large. In practice, a site that cannot be crawled, loads slowly or throws errors cannot use the value of the links it earns. Technical health lets the authority you build reach your pages.

These technical topics come first for us:

• Crawlability and indexability errors.
• Broken links and wrong redirects.
• Site speed and Core Web Vitals.
• Duplicate content and canonical tag issues.

Here is an example. A news site's old article earns a strong link. During a redesign, the article's address changes and the redirect is forgotten. The link value is lost, and the score drops over time.

To prevent this, list the pages that earn external links. Check that list at every site update. So if a linked page returns 404, redirect it permanently to its new address.

For a checklist, read our post on what technical SEO is. Then a small habit prevents big losses.

How does internal linking steer authority?

The link value a page earns flows to other pages through internal links. Put simply, a link from a strong page to a page you want to rank raises the value of that target. This is the cheapest and fastest authority tool you have.

In practice, we do the following:

1. List the pages that earn external links.
2. Link from those pages to target pages, inside the context.
3. Keep the anchor text natural and descriptive.
4. Leave no important page orphaned.

A common mistake is to pile all internal links into the main menu and footer. In-content links with context are much stronger. Also, a reader clicks when the related topic comes to mind.

Anchor text matters too. Instead of "click here", use descriptive phrases like "internal linking strategy". Then both the reader and the search engine understand where the link goes.

Internal linking also helps users. Readers move to related topics and stay longer. For the full method, see our internal linking strategy guide.

What is the difference between brand authority and domain authority?

Domain authority is a tool score. Brand authority is how much people and search systems know and look for your brand. The first comes from links. Brand authority grows from brand searches, mentions, references and trust signals.

The two feed each other. It is easier to link to a known brand. As you earn links, the brand becomes more visible. Still, they are not the same thing.

This difference matters in practice. A site with high DA that nobody searches for can be more fragile than a site with medium DA that is well known in its field. Then we see the brand as the long-term asset.

Here is a practical test. Search your brand name on Google and watch how brand searches change over time. If they grow, you are on the right path, whatever your link score is. People search only for brands they trust.

Things that raise brand authority include industry mentions, customer reviews, conference talks and press. Many of them also produce links. That is how the two ideas connect.

We cover the full approach in how to build brand authority. Place your link work inside that frame.

How long does it take to raise domain authority?

It depends on your starting point and your competition. For a site starting from zero, a meaningful rise usually takes months. New links also need time to enter the tool's database. So do not expect quick jumps.

Here is a rough frame from our field experience. Also, it is a starting range, not a guarantee:

Do not look for shortcuts to speed things up. So the way to lift a site's DA fast is usually through risky links. They do not last, and they often backfire.

Instead, set small, steady goals. Two quality links a month, one strong piece of content and one technical fix add up to a real difference after a year. Patience is a true competitive edge here.

Our post on how long SEO takes explains the wider timeline.

Why does domain authority drop?

Most of the time, a drop is not your fault. Also, when competitors earn links, your relative score can fall. When the tool updates its database and model, you will also see swings.

Real causes of loss include these:

• Valuable links disappear or linked pages get deleted.
• Redirects are missing after a domain or site move.
• Links with spam signals pile up.
• The sites that linked to you shut down.

First, separate the cause. Did only the score fall, or did organic traffic fall too? If only the score fell, there is usually no need to panic. However, if traffic fell too, look for a technical or content problem.

When a client's score drops, we first open the lost links report. We see which links vanished and when. Often they came from deleted old pages or closed sites.

You can win back a lost valuable link. Contact the source site and share the new address of the page. Many site owners will help.

If you plan a move, follow our website migration SEO checklist.

Does buying an expired domain give you authority?

Most of the time, it does not. Buying an expired domain with a high DA and building a new site on it used to be a common tactic. Today Google can treat it as spam. However, when the topic changes, the old links can lose their value.

We do not recommend this path. Besides, it carries high risk, and it is expensive. Building a solid brand from scratch is a more reliable investment.

There is a redirect tactic too: buying an expired domain and redirecting it to your site. Google usually does not pass link value in such cases. However, if the topics do not match, the result is close to zero.

A legitimate case is to take back your own brand's old domain. Also, if your company changed its domain, keeping the old address and redirecting it properly is the right move.

When you choose a domain, pick a short, memorable name that fits your brand. For details, read how to choose a domain name for your business.

If you must buy an old domain, check its history first. See what it was used for and whether it ever had a penalty.

What should a 90-day domain authority plan look like?

In the first 90 days, your goal is a solid base, not a jump in score. So the plan below is an example frame for a corporate site at the starting level. You should adapt it to your budget and industry.

1. First two weeks: measure your score and the scores of five competitors.
2. Weeks three and four: run a technical crawl and fix broken links and redirects.
3. Second month: build two or three link-worthy assets, such as a tool, a guide and a data study.
4. End of month two: build a target list from the competitor link gap.
5. Third month: reach out to target sites with personal messages and update internal links.
6. End of month three: report referring domains and traffic.

Keep a written record of each step's output. Then you can see what worked.

This plan does not fit every sector. For a brand-new company, content and brand awareness may come first in month one. For an established firm, technical cleanup alone can bring a big gain.

Before you start, define your goal. Do you want a higher score, more traffic or more conversions? The order of work changes with your answer. Still, our advice is always to set a conversion-focused goal.

Which metrics should you report alongside domain authority?

Do not show executives DA alone. So the score does not tell a business story by itself. Present it with real performance metrics instead. Then the question "why do we invest in this" gets a clear answer.

A monthly report should include these metrics:

• Unique referring domains.
• Organic clicks and impressions from Search Console.
• Average position for target keywords.
• Conversions from organic traffic.
• Brand search volume.

We build our reports on this frame. If DA rises but conversions do not, the work is heading the wrong way.

The language of the report matters too. Instead of "DA rose by 5 points", say "links from industry sites doubled and average position on target pages rose by three places". That sentence ties to a business result.

Label your numbers clearly. Call estimates estimates and measured values measurements. Trust in reporting comes from honesty.

If you want help with your SEO work, see our SEO consulting page. In short, watch the score, but make decisions with traffic and revenue.