Key Takeaways
- According to Moz's official documentation , Domain Authority is calculated using a machine learning model that finds the algorithm best correlating link data with rankings across thousands of actual search results.
- There is no shortcut, but the inputs are knowable.
- Just as important as the right moves are the ones that waste time or actively hurt you.
- If you've checked your site in both Moz and Ahrefs, you've probably noticed the two scores don't match.
- For a newer site, getting from a DA in the single digits to the 20s is achievable within a few months of consistent, legitimate link earning, because the logarithmic curve is gentle at the low end.
- Expect at least one to two Moz update cycles, which run roughly monthly, before a genuine improvement in your link profile shows in your DA.
- DR vs DA: Domain Rating and Domain Authority Explained Moz Not Showing Domain Authority? Why and What to Use Instead Why
The short answer on how to improve Moz Domain Authority is this: earn links from more high-quality, topically relevant root domains while keeping your spam signals low. Domain Authority (DA) is Moz's predictive score for how likely a site is to rank, modeled on its link profile. You can't edit the number directly, and chasing it with cheap links usually backfires. What follows is what actually moves it, based on Moz's own documentation.
Most people misread DA from the start. It's a comparative, machine-learning score on a 100-point logarithmic scale, not a Google ranking factor and not a guarantee of traffic. Treat it as a rough proxy for link equity, and the improvement strategy gets a lot clearer.
What Moz Domain Authority Actually Measures
According to Moz's official documentation, Domain Authority is calculated using a machine learning model that finds the algorithm best correlating link data with rankings across thousands of actual search results. The strongest inputs are the number of linking root domains and the total quality of your backlink profile, blended into a single 1-to-100 score.
Two details matter for anyone trying to raise the number. First, DA is logarithmic, so moving from 20 to 30 is far easier than 70 to 80. Second, it's relative. Moz periodically recalibrates the model against the wider web, so your score can dip even if you did nothing wrong, simply because the sites you're benchmarked against grew faster. Before you start, it's worth using a tool to check your site's authority so you have a clean baseline to measure progress against.
How to Increase Moz DA: The Levers That Work
There is no shortcut, but the inputs are knowable. Here are the tactics that genuinely increase Moz DA, in rough order of impact.
1. Earn links from more unique root domains
Linking root domains are the single heaviest input. Ten links from ten different reputable sites are worth far more than fifty links from one site. Focus on widening the count of distinct, credible domains pointing to you through digital PR, original research, guest contributions, and resource-page outreach. Quality of the linking domain matters as much as quantity.
2. Prioritize link quality and relevance
Moz's model is trained on links that correlate with ranking, so a link from a high-authority, topically aligned site carries more weight than a random low-quality mention. A backlink from an established industry publication in your niche will move the needle; a sitewide footer link from an unrelated directory generally won't. Ahrefs' link building guide is a solid primer on earning the kind of editorial links that hold value.
3. Lower your Spam Score
Moz assigns a Spam Score based on flags correlated with penalized or low-trust sites. A bloated backlink profile full of spammy referring domains can drag your perceived authority down. Audit your backlinks, disavow or distance yourself from toxic links where warranted, and avoid link schemes that trip these flags in the first place.
4. Build internal links and strong site structure
While DA is fundamentally about external links, a clean, crawlable architecture helps the pages that attract links pass equity efficiently across your site. Solid internal linking won't single-handedly raise DA, but it makes the most of every external link you earn. Point your strongest, most-linked pages at the ones you want to rank, keep important content within a few clicks of the homepage, and use descriptive anchor text so crawlers understand how your pages relate to one another.
5. Be patient and consistent
DA updates run on Moz's schedule, and the model recalibrates roughly monthly. A genuine improvement in your link profile may take one or two update cycles to show. Consistency beats bursts: a steady stream of quality links reads as far healthier than a sudden spike, and it is far less likely to trip the spam heuristics that punish unnatural, overnight link growth.
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Moz DA Tips: What to Avoid
Just as important as the right moves are the ones that waste time or actively hurt you.
- Buying links in bulk. Paid link networks inflate raw link counts but raise Spam Score and risk Google penalties. The short-term bump rarely survives the next recalibration.
- Obsessing over a single point. A one or two-point swing is often just model recalibration, not a real change in your profile. Look at the trend over months, not the daily reading.
- Treating DA as a ranking factor. Google has repeatedly confirmed it does not use Moz DA. Optimizing solely for the score instead of for genuine authority and content is backwards.
- Ignoring relevance. A high-DA link from a wholly unrelated site does less than a moderate-DA link from a true topical peer.
Why Your DA and DR Differ
If you've checked your site in both Moz and Ahrefs, you've probably noticed the two scores don't match. That's expected. Moz Domain Authority and Ahrefs Domain Rating are built by different companies using different link indexes and different models, so they will almost never line up.
DR is calculated purely from the strength of a site's backlink profile based on Ahrefs' own crawl of the web. DA blends multiple link signals through a machine-learning model trained against ranking data. Different crawlers find different links, and different math produces different numbers. We dig into this fully in DR vs DA: Domain Rating and Domain Authority Explained.
Because the two metrics often disagree, it pays to track both rather than fixating on one. We built a free DR checker so you can pull any site's Ahrefs-based Domain Rating instantly, with no signup, and cross-reference it against your Moz number. And if Moz isn't returning a score at all, see Moz Not Showing Domain Authority? Why and What to Use Instead for the common causes and fixes.
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A Realistic Timeline for Increasing Moz DA
For a newer site, getting from a DA in the single digits to the 20s is achievable within a few months of consistent, legitimate link earning, because the logarithmic curve is gentle at the low end. Moving into the 40s and beyond takes longer and demands genuinely authoritative links, since each additional point requires disproportionately more link equity. Set expectations accordingly and judge progress by linking root domains gained, not by the score alone. If you measure success by the count and quality of new referring domains rather than the headline number, you will stay motivated through the inevitable flat stretches between Moz updates.
| Lever | Impact on DA | Effort |
|---|---|---|
| New high-quality linking root domains | High | High |
| Lowering Spam Score | Medium | Medium |
| Link relevance and topical fit | Medium-High | Medium |
| Internal linking and structure | Low-Medium | Low |
| Buying bulk links | Negative | Low |
FAQ
How long does it take to improve Moz Domain Authority?
Expect at least one to two Moz update cycles, which run roughly monthly, before a genuine improvement in your link profile shows in your DA. Early gains at low DA come faster because the scale is logarithmic, while higher scores take progressively longer.
Can I increase Moz DA without building backlinks?
Not meaningfully. DA is predominantly a link-based metric, so while clean site structure and internal linking help, earning links from new high-quality root domains is the primary lever for increasing Moz DA.
Does a high Moz DA guarantee better Google rankings?
No. Moz DA is a third-party predictive score, not a Google ranking factor. It correlates with ranking ability because both depend on strong links, but Google does not use it directly, so treat DA as a benchmark rather than a target.
Why did my Domain Authority drop when I didn't lose any links?
DA is a relative, periodically recalibrated score. When Moz retrains its model or the wider web's link profiles shift, your number can move down even with a stable backlink profile. Watch the long-term trend instead of single readings.
What's a good Moz DA to aim for?
It depends entirely on your niche and competitors. Rather than chasing a universal target, compare your DA against the sites ranking for your keywords and aim to close that gap through quality link earning.
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Written by
Anjan LuthraManaging Partner, Indexed
Anjan Luthra is Managing Partner at Indexed. He has spent over a decade inside high-growth companies building organic search into their primary acquisition channel, and writes about SEO strategy, AI search, and revenue a…