Comparison
DR vs DA: which authority metric should you actually trust?
Ahrefs Domain Rating (DR) and Moz Domain Authority (DA) are both 0 to 100 scores that try to capture a site’s clout. They are not the same thing, they rarely agree, and -- this is the part most people miss -- neither is a number Google uses. Here is what each one really measures and how to use them when vetting links.
The verdict
Use DRwhen your question is “how strong is this site’s backlink profile?” -- it is the cleaner, link-only signal and the one most link buyers default to. Reach for DA when you want a broader, ranking-leaning estimate that blends more factors. The mistake is treating either as a Google score or comparing a DR from one site to a DA from another. Pick one metric, apply it consistently, and never let a single two-digit number replace a look at relevance, traffic, and real editorial quality.
Side by Side
DR vs DA, dimension by dimension
Same 0 to 100 surface, very different machinery underneath. The columns below cover what each metric measures, how it is built, and where it is most useful.
Domain Rating (DR)
Domain Authority (DA)
The correlation between the two is loose: a site with DR 50 will not reliably sit at DA 50, because the crawlers, link indexes, weighting, and goals all differ. Compare DR to DR and DA to DA, never across the two.
The Big Caveat
Neither is a Google ranking factor
This is the single most important thing to internalize. DR and DA are third-party predictions built by Ahrefs and Moz to approximate authority. Google does not publish or use a domain-wide authority score, and its representatives have said as much repeatedly. Treat these numbers as useful shorthand for comparing prospects -- not as the thing you are optimizing for.
A high DR or DA does not guarantee rankings. Both are estimates, and a site can score well while ranking for almost nothing real.
Chasing the score invites manipulation. DR in particular can be inflated with low-value links, which is exactly what you do not want in a profile.
Relevance and real traffic still win. A DR 35 site that is tightly on-topic and gets genuine visitors often beats a generic DR 60 page.
When To Choose Each
Pick the metric that fits the question
Choose DR when
- You are vetting a single link prospect and want a fast, link-only read on how strong its backlink profile is.
- Your whole workflow already lives in Ahrefs and you want one consistent number across prospecting, competitor analysis, and reporting.
- You want the most direct proxy for “does this site have real link equity to pass?” without traffic or content muddying the signal.
Choose DA when
- You want a broader, ranking-leaning estimate that blends more than just links into a single comparison score.
- You are comparing similar sites within the same niche and want Moz’s SERP-calibrated view of which is likely stronger.
- Your team, client, or outreach targets already speak in DA, so consistency with their expectations matters more than methodology.
Whichever you pick, the deeper move is to stop scoring sites by a single number at all. At AnchorApe every placement clears a documented quality bar before a metric ever enters the conversation. See our editorial standards and a real sample report to see how we vet beyond DR and DA.
Go Deeper
Related reading
Once you know which metric to trust, the next questions are how the score is built and how much link strength you actually need.
Domain Rating explained
How DR is actually built and what counts as a healthy score for your niche.
Read →Data ReportThe Backlink Impact Report
The published research on why link quality, not just quantity, separates winners from losers.
Read →CalculatorSEO ROI Calculator
Translate stronger authority into a projected revenue number for your own site.
Open →Beyond the Score
Links vetted on more than a number
DR and DA are starting points, not finish lines. AnchorApe places verified, editorially earned links on relevant sites that pass real quality checks -- not just a high two-digit metric.