Picture this: a Jeddah restaurant owner opens her SEO report. One number stares back — Domain Authority 18 — next to a competitor’s 42. But almost nobody answers the basic question — what is domain authority — or explains what the number can never tell you. This guide covers how the score works, what moves it, five misuses, and when it deserves attention. All facts verified October 2026.
What is domain authority? Domain authority (DA) is a 1-to-100 score developed by Moz that predicts how likely a website is to rank on search engine result pages. It compresses a site’s backlink profile — the number and quality of sites linking to it — into a single number. It is a comparative benchmark, not a Google ranking factor.
What is domain authority, exactly?
Domain authority is Moz’s best guess at your site’s ranking strength. The company crawls billions of web pages, studying how linking patterns correlate with actual search results. A machine-learning model predicts which domains are most likely to rank. The output: one number from 1 to 100. Higher means stronger predicted ranking ability — nothing more, nothing less.
Think of it as a credit score for your link profile. So what is domain authority really measuring? Your backlink profile’s predicted power — nothing else. As Moz’s former principal search scientist Russ Jones put it, it “on its own, in a vacuum, means very little.” Every new website starts at DA 1.
Who created domain authority, and how is it calculated?
Domain authority was created by Moz and rebuilt in 2019 as “DA 2.0” on a machine-learning model. It weighs linking root domains, total link counts, and Spam Score alongside other proprietary factors. The scale is logarithmic: climbing from 20 to 30 takes far less link equity than climbing from 70 to 80.
To understand what is domain authority under the hood, look at its inputs. Moz counts distinct linking domains and weighs their authority using MozRank and MozTrust signals. It studies anchor text patterns and nofollow/dofollow ratios. It checks for manipulation. One blind spot: DA only counts what Moz’s crawler has found.
Is domain authority a Google ranking factor?
No. Google does not use domain authority — not Moz’s version, not any third-party score. John Mueller has said so repeatedly. In Google’s own #AskGooglebot video he stated: “No, Google does not use scores from third-party SEO tools or services.” Moz agrees: “Domain Authority is not a Google ranking factor and has no effect on the SERPs.”
This is where the question “what is domain authority” meets its most important answer: a third-party prediction, not a Google signal. Mueller confirmed in 2026 that Google uses broad domain-level trust signals — nothing resembling Moz’s score (full exchange). Even in the AI Overviews era, Google reads its own signals. Confusing correlation with causation is the costliest mistake in SEO reporting — see how we set expectations about SEO results.
What does your domain authority score actually mean?
Your score only means something next to someone else’s. A DA of 25 is strong against competitors at 18, 21, and 24 — weak against 55, 60, and 72. Read it as a precise gap measurement of the link equity you must earn to catch the sites currently winning your keywords.
| DA range | What it usually means |
|---|---|
| 1–20 | New or thin sites — most small business websites live here |
| 21–40 | Established sites with real link equity |
| 41–60 | Strong domains that compete in most niches |
| 61–80 | Major brands and large publishers |
| 81–100 | Internet-scale sites — top news publishers and platforms |
Two warnings. First, DA ignores your on-page SEO — title tags, content, page speed — plus technical SEO factors like crawl efficiency. It never predicts click-through rate or featured snippet wins. Second, never compare across niches: a DA 30 Dammam supplier can outrank a DA 50 lifestyle blog for its own keywords. So what is domain authority worth to you? Exactly what the competitive gap reveals.
Domain authority vs page authority vs topical authority: what’s the difference?
These three sound alike but measure different things. Domain authority scores the whole domain’s predicted ranking strength. Page authority scores a single page. Topical authority is not a Moz score at all — it is the earned reputation of covering one subject deeply enough for Google to trust your expertise.
Once you grasp what is domain authority, the other two stop being confusing. Moz’s Page Authority (PA) applies the same 1–100 logic to individual URLs; new pages on strong domains rank fast by inheriting trust. The dental-implant example shows why the distinction matters: a news site can hold DA 85 with zero topical authority on dental implants while a DA-28 clinic owns that topic. Chase depth, not the digit.
Why does domain authority change — even when you did nothing?
Domain authority is relative: your score can fall while your site improves, because a competitor earned links faster. The score also shifts when Moz updates its index or retrains the model. Links get discovered, lost, or reclassified — so a sudden drop is usually the model moving, not your site breaking.
What is domain authority doing when it moves untouched? Reacting to a shifting index. Moz recrawls constantly, so links appear and vanish. Recalibrations shift scores index-wide overnight. Losing strong backlinks — or gaining toxic ones that spike Spam Score — drags it down. Track DA against the same five competitors monthly; react to the gap, never the absolute number.
How Saudi businesses should actually use domain authority
Used correctly, domain authority is a benchmarking and vetting tool. Compare your DA against the sites ranking for your target keywords. Use the gap to size the link-building work ahead. Vet outreach targets: a DA-40 site in your niche beats a DA-60 link farm every time. That is the legitimate playbook.
Three valid uses. First, benchmarking: if the top five results for your money keyword average DA 35 and you sit at 12, you know the scale of the gap. Second, vetting: check DA and Spam Score before pitching a guest post — high DA plus high spam score means manipulation. Third, tracking: a rising DA alongside rising organic traffic confirms your off-page SEO is compounding.
Domain authority in Riyadh: a concrete example
Picture a Riyadh dental clinic off King Fahd Road: competitors at DA 14, 19, and 26, the clinic at 11. The gap is small and closable — a year of earning local links (directories, a Riyadh health publication feature, a university partnership) can close it. Contrast a Jeddah store chasing national keywords against DA-55 marketplaces: a different game entirely. For the clinic, the Google Maps local pack matters more than DA. At EazyRankSEO, this gap math opens every authority conversation.
The 5 ways businesses misuse domain authority (and what to do instead)
Most damage from domain authority comes from treating the score as the goal. It is a thermometer, not the weather: it reflects link equity but changes nothing by itself. Here are the five misuses that affect Saudi businesses most often, each with the honest alternative that actually moves rankings.
- Buying “DA 50” guest posts. Sellers inflate DA with spam, then rent the number out. Fix: vet relevance and traffic first; DA last.
- Obsessing over the digit. DA 30 on page one beats DA 50 on page three. Fix: report rankings, traffic, and conversion rate.
- Treating it as a Google factor. It is not. Fix: it models link equity, nothing more.
- Comparing across niches. Different games. Fix: benchmark only your SERP competitors.
- Firing an agency over a DA dip. Recalibrations move scores monthly. Fix: judge by referring domains and rankings moved.
If your link profile needs real work, our link building services earn links that move rankings.
Frequently asked questions
What is a good domain authority score?
There is no universal good score — only one higher than your competitors’. Most small business sites sit between 10 and 30, established sites between 30 and 50, and major brands above 60. Asked what is domain authority good for, the answer is always benchmarking: list the five domains winning your target keywords, during keyword research, then aim a few points above them.
Does domain authority affect Google rankings?
No — not directly, and this is the myth that matters most. Google has stated repeatedly that it does not use Moz’s Domain Authority or any third-party score. What does affect rankings is the underlying link equity: real, relevant backlinks from trusted sites. Improve those and rankings and DA tend to rise together. The score follows the work; it never causes it. See the Search Engine Journal analysis for the full evidence.
What is the difference between domain authority and page authority?
Both are Moz scores on a 1–100 scale. Domain authority predicts the ranking strength of the entire domain; page authority predicts it for a single page. A new page on a high-DA site often ranks faster because it inherits some of the domain’s established trust. Use DA for benchmarking competitors, and PA when judging whether a single page can win its keyword.
What is the difference between domain authority and Ahrefs domain rating?
Rival measures of the same thing: backlink-profile strength. Domain Authority is Moz’s score; Domain Rating (DR) is Ahrefs’. Both run 1–100 and logarithmic, but different crawlers and models mean the numbers are not interchangeable — the same site can be DA 34 and DR 41. Pick one tool, learn how it scores, and compare yourself only against competitors measured by it.
Why did my domain authority drop?
The usual causes, in order: a competitor earned links faster (the score is relative), Moz’s crawler dropped some of your links in a recrawl, you lost a few strong backlinks, or Moz recalibrated its model index-wide. New toxic links spiking Spam Score can also drag it down. If your competitors all dropped too, it was a model update, not your site.
How long does it take to increase domain authority?
There is no fixed timeline — it depends on your starting point, niche competitiveness, search intent alignment, and how consistently you earn quality links. The logarithmic scale means early gains come faster: 10 to 20 can take months of steady link earning; 60 to 70 can take years. Honest ranges, not promises: a small Saudi business earning 5–10 genuine referring domains per quarter typically sees movement within 6–12 months. Results vary and are never guaranteed.
Can I pay someone to raise my domain authority?
You can pay for link building, but a guaranteed DA number is buying the metric, not the outcome. DA can be inflated with spammy links that add zero ranking power — or trigger a penalty. Legitimate link building — digital PR, resource pages, broken link building, white-hat outreach — raises DA as a side effect of real links. Pay for the work; let the score follow.
ما هو الدومين أثورتي؟
الدومين أثورتي (doomin athority — “domain authority”، بالعربية الفصحى MSA) هو مقياس من 1 إلى 100 طورته شركة Moz للتنبؤ بقدرة الموقع على الترتيب في نتائج البحث. يعتمد على عدد وجودة الروابط الخلفية، وهو للمقارنة مع المنافسين وليس عامل ترتيب في جوجل. المواقع الجديدة تبدأ دائماً من 1. استخدمه لمقارنة موقعك مع منافسيك في السعودية، ولا تحاول رفع الرقم بشراء روابط رخيصة لأنها قد تضر موقعك بدل أن تنفعه.
Is domain authority the same as topical authority?
No, and confusing them is costly. Once you know what is domain authority — Moz’s numeric score of link-based ranking strength — topical authority is easier to place: it is qualitative, Google’s growing trust that your site is an expert source on one subject. A site can hold high DA with zero topical authority in your niche. For Saudi businesses, topical authority is often the more winnable game.
How do I check my domain authority for free?
Moz’s free Link Explorer offers a few free monthly checks of DA, linking domains, and Spam Score. For the most reliable reading, compare against competitors in the same tool on the same day. Cross-check your real link profile in Google Search Console’s Links report — free, unlimited, and showing what Google itself sees. Start there.
The bottom line
Remember the Jeddah restaurant owner staring at Domain Authority 18? She is not losing — her competitors sit at 22 and 25, the gap is closable, and her pages convert better. So what is domain authority, finally? A compass for competitive benchmarking, not a verdict on your business. Step 1: list the five domains outranking you and note their DA. Step 2: close the link gap with earned, relevant links — never rented scores. Step 3: track rankings, traffic, and ROI monthly, and let DA be the footnote it deserves to be. When the link work needs a practitioner, our off-page SEO team earns links that move rankings — or see our SEO pricing to compare plans. What is the one SEO metric you have never gotten a straight answer about?
Written by Mohammad Muttiullah, Founder of EazyRankSEO. Mohammad leads SEO strategy for businesses across Riyadh, Jeddah, Makkah, and Madinah. About our team.
