How to Check Domain Authority: A Beginner's Guide

Domain authority sounds like something only SEO experts understand, but checking it is genuinely simple. In fact, you can find out any website's score in under a minute, no technical background required. This guide walks through exactly how to check domain authority, what the number actually means, and how to make sense of it once you have it.

Before diving into the details, the fastest way to see this in action is to run your own site through a free Domain Authority Checker. Once you have your number, the rest of this guide will help you understand what it means and what to do with it.

What Is Domain Authority?

Domain Authority (DA) is a third-party metric developed by Moz that predicts how likely a website is to rank well in search engine results. It's scored on a scale from 1 to 100, with higher scores generally indicating a stronger, more established website.

DA is calculated primarily by analyzing a website's backlink profile: how many unique websites link to it, and how trustworthy and relevant those linking sites are. According to Moz's official explanation of Domain Authority, the metric uses machine learning to predict how well a domain will perform in search results compared to others, based largely on the strength and diversity of its inbound links.

Is Domain Authority a Google Ranking Factor?

No, and this is one of the most important things to understand before relying on DA for anything. Google has been clear on this point. Google's own representatives have addressed this directly, and Google's statement on third-party ranking metrics makes clear that tools like Domain Authority are not part of how Google actually ranks websites.

So why does DA still seem to correlate with search performance? It comes down to shared underlying signals rather than direct cause and effect. Websites with strong backlink profiles, established trust, and high-quality content tend to both rank well in Google and score well on Domain Authority, since both outcomes stem from the same fundamentals. In other words, DA doesn't cause good rankings, but the things that build DA often happen to be the same things that help you rank.

How to Check Domain Authority (Step-by-Step)

Checking a domain's authority score takes just a few seconds:

1. Go to a domain authority checker tool. Any reputable free tool will work for a quick check.
2. Enter the domain you want to check. This can be your own site or any competitor's website.
3. Click check or analyze. The tool queries backlink data and calculates the score instantly.
4. Review your results. You'll see your DA score alongside related metrics like Page Authority and backlink counts.

The Domain Authority Checker handles this entire process for free, with no signup required, making it an easy first step whether you're checking your own site or researching a competitor.

What Information Does a Domain Authority Check Show You?

A typical domain authority check returns several related metrics, not just a single number:

• Domain Authority (DA) score. The overall ranking strength of the entire domain, scored 1 to 100.
• Page Authority (PA) score. A similar score, but calculated for a specific individual page rather than the whole domain.
• Referring domains. The number of unique websites linking to the domain, a key input into the DA calculation.
• Backlink count. The total number of links pointing to the site, including multiple links from the same source.
• MozRank. A supplementary score reflecting overall link popularity and quality.

Together, these numbers give you a fuller picture than the DA score alone, particularly when you're trying to understand why a score is what it is.

Domain Authority vs Page Authority: What's the Difference?

These two metrics get confused often, so it's worth clarifying the distinction directly.

A website can have a strong overall DA while individual pages still carry very different PA scores, depending on how well-linked and optimized each one is. A homepage or a widely referenced flagship article, for example, might have a noticeably higher PA than a newer blog post buried deep in the site's structure, even though both pages belong to the same domain.

What Is a Good Domain Authority Score?

This is easily the most common question people have once they check their score for the first time, and the honest answer is that there's no universal "good" number. DA is a relative metric, meaning it only really means something when compared against similar sites in your specific niche or industry, not the internet as a whole.

That said, here's a general reference point for interpreting scores:

Every new website starts at a DA of 1, and it climbs gradually as backlinks accumulate over time. Even large, globally recognized sites rarely reach a perfect 100, since the scale is intentionally difficult to max out.

Why Domain Authority Varies Between Different Tools

If you've ever checked the same domain across two different tools and gotten two different numbers, that's completely normal, not a mistake. Domain Authority is not a standardized, industry-wide metric. Moz created the original Domain Authority score, but competitors calculate their own versions under different names. Ahrefs uses "Domain Rating" (DR), and SEMrush uses "Authority Score," and how Ahrefs calculates Domain Rating differs meaningfully from Moz's approach, particularly in which signals get weighted most heavily.

Because each tool uses its own proprietary formula and its own backlink database, scores simply won't line up exactly across platforms. The practical takeaway is to pick one tool and stick with it for consistent tracking over time, rather than worrying about small discrepancies between different checkers.

What Factors Influence Domain Authority?

Several elements feed into a domain's authority score:

• Referring domains. The number of unique websites linking to your domain is generally the single biggest driver of DA.
• Link quality. A handful of backlinks from trusted, relevant, high-authority sites carries far more weight than a large volume of low-quality links.
• Total backlinks. The overall link count matters too, though multiple links from the same domain contribute less than links from genuinely different sources.
• Domain age. Older, more established domains have typically had more time to accumulate authority naturally.
• Content quality. Comprehensive, genuinely useful content is what attracts links in the first place, making it an indirect but important contributor.
• Technical health. Unresolved technical issues, like widespread broken links, can quietly limit how effectively authority builds over time.

How to Check Your Competitors' Domain Authority

One of the most practical uses of a DA check isn't just monitoring your own score, it's understanding where you stand relative to the sites you're actually competing against in search results. Run each competitor's domain through the same Domain Authority Checker to get a consistent, apples-to-apples comparison.

It's also worth checking a competitor's domain age alongside their DA score. Older domains often carry a natural authority advantage simply from having had more time to accumulate backlinks and trust, which adds useful context when you're trying to understand why a competitor's score looks the way it does.

How Often Should You Check Domain Authority?

There's no need to check daily, and doing so will likely just leave you staring at a number that hasn't meaningfully changed. Since DA is tied to backlink accumulation, which happens gradually, checking roughly once a month, or after a major SEO campaign or content push, is generally sufficient to spot real trends.

Short-term fluctuations are usually just noise from how backlink databases get updated and recalculated, rather than a genuine shift in your site's authority. Patience matters more than frequency here.

How to Improve Your Domain Authority

If your current score isn't where you'd like it to be, improvement comes down to a handful of consistent, sustainable practices:

• Earn quality backlinks. Focus on relevant, reputable sites in your industry rather than chasing link volume alone.
• Create genuinely link-worthy content. Original research, comprehensive guides, and useful free tools all tend to attract natural links over time.
• Fix broken links and technical issues. Cleaning up crawl errors and dead links removes quiet barriers to authority growth.
• Strengthen internal linking. Linking from your strongest, most established pages to newer or underperforming content helps distribute authority across your site.
• Avoid link schemes or purchased backlinks. These tactics risk search engine penalties and often get filtered out of authority calculations entirely, wasting the investment.

It's worth setting realistic expectations here. Meaningful DA improvement typically takes several months of consistent effort, not days or weeks, since it depends on genuinely earning trust and links over time.

Common Domain Authority Myths and Misconceptions

A few persistent misunderstandings are worth clearing up directly:

• "Domain Authority is a Google ranking factor." It isn't. It's a third-party estimate built by Moz, not a metric Google itself calculates or uses.
• "A DA of 100 is achievable." Scores in the 90s are effectively reserved for massive, globally authoritative sites like Google or Wikipedia. Near-perfect scores are out of reach for the vast majority of websites, and that's completely normal.
• "Higher DA always means better rankings." A lower-DA site with highly relevant, well-optimized content for a specific query can absolutely outrank a higher-DA competitor whose content is less targeted.
• "You can safely buy your way to a high DA." Purchased or low-quality links carry real risk. They can trigger penalties, and backlink algorithms are increasingly good at identifying and discounting manipulative link patterns.

Final Thoughts: Check Your Domain Authority Today

Checking your domain authority takes seconds, and understanding what the number actually means makes it a genuinely useful benchmark rather than just another confusing metric. Run your site through a free domain authority check, compare it against your real competitors, and revisit it periodically as you build backlinks and grow your site's overall authority over time.