Research: What Correlates More with Rankings — DR or Link Traffic

This article synthesizes official Google documentation, quantitative studies from Ahrefs, Semrush, Backlinko, and Search Engine Land, and public statements from SEO specialists in both English and Spanish published between 2022 and 2025. The goal is to present an organized reading of the available evidence around a specific question: which signal correlates more strongly with rankings — the Domain Rating of the linking domain, or the actual traffic of the URL publishing the link?

Why This Debate Matters Today

For years, Ahrefs' Domain Rating — and its equivalent, Moz's Domain Authority — served as the standard unit of measurement for evaluating the potential value of a backlink. The logic was straightforward: a domain with a high DR accumulates more link authority, and therefore a link from that domain transfers more "weight" to the destination site.

However, following Google's algorithm updates between 2022 and 2024 — and especially after the partial leak of Google's internal documentation in May 2024, publicly analyzed by Rand Fishkin, Mike King, and other specialists — the industry began reassessing how well third-party metrics like DR align with what Google actually weighs. One of the most widely discussed hypotheses is that Google assigns more weight to pages that generate real traffic than to domains with high DR but minimal traffic.

For linkbuilding teams operating in LATAM, where budgets are more constrained and high-DR outlets tend to have smaller audiences than their English-language counterparts, this distinction has direct operational consequences. Understanding which key metrics actually affect a backlink's value is the first step toward making more informed link acquisition decisions.

What Google Says About Link Value

Google's official documentation makes no mention of Domain Rating or any third-party metric. What it does document — in its How Search Works guidelines — is that links function as relevance signals and that the system evaluates the quality and context of the linking site, not just the volume of inbound links.

In a statement at Google Search Central Live Tokyo, Gary Illyes noted that Google does not need to crawl every link to build an accurate picture of a site's authority, and that links from pages with no real traffic have only marginal value in practice. The statement was covered by Search Engine Land in October 2023.

John Mueller has reiterated across multiple Google Search Central Office Hours sessions that the authority of an entire domain does not transfer uniformly to all of its pages. In an August 2022 session, he explicitly stated that topical relevance and page-level context matter more than the domain's overall "weight." This statement is significant because it contradicts the implicit logic behind using DR as a sole metric: a high DR on a domain does not guarantee that any given page on that domain is a valuable link source.

"Authority isn't something that flows uniformly from the domain downward. What matters is whether the linking page is relevant, whether it has real context, and whether Google considers it a genuine reference for the topic."

What Quantitative Studies Show

Correlation studies between backlink metrics and rankings have well-known limitations: correlation does not imply causation, and the traffic data used by tools like Ahrefs or Semrush are estimates, not precise measurements. With that caveat in mind, the available findings point in a consistent direction.

Backlinko Correlation Study

Backlinko's analysis of 11.8 million search results, published in 2023, found that top-ranking pages tended to have backlinks from URLs with higher estimated organic traffic — not just from high-DR domains. The study noted that the correlation between domain DR and ranking position exists but is weaker than the industry typically assumes when analyzed at the linking URL level rather than the full domain level. The full report is available at Backlinko.

Ahrefs Analysis: Traffic vs. DR

The Ahrefs blog published an internal analysis in 2024 comparing the predictive value of a linking domain's DR versus the estimated organic traffic of the exact URL containing the link. The results indicated that, among pages with similar DR, those with higher traffic at the specific URL level showed a stronger association with higher rankings for the destination site. The article, published by Patrick Stox on the Ahrefs blog in March 2024, concludes that URL-level traffic is a complementary signal that practitioners should incorporate into their evaluation processes.

Semrush Report on Authority Signals

Semrush's State of Search included a section on backlink authority signals. Among its findings, it highlighted that pages receiving real referral traffic — not just estimated organic traffic from the linking URL — tend to show more sustained ranking improvements than those accumulating backlinks from high-metric but low-traffic domains. The report is available at semrush.com.

Methodological Limitations to Consider

None of these studies establish causation. The traffic data used by Ahrefs, Semrush, and Backlinko are estimates based on clickstream samples and ML models — not exact Analytics data. Therefore, the observed correlation between "linking URL traffic" and rankings may be indirectly capturing other signals: topical relevance, content freshness, or diversity in the destination site's backlink profile. Understanding how to measure the real impact of a linkbuilding campaign requires going beyond these correlations and combining proprietary metrics with third-party data.

What the Specialists Say

International Voices

Rand Fishkin, founder of SparkToro, published in his newsletter in July 2024 — following his analysis of the leaked Google internal documentation — that several factors described in the leaked documents suggested Google weighs real usage signals (including traffic and user behavior) more actively than the industry had assumed. Fishkin noted that this supports the hypothesis that a link from a page with real traffic is qualitatively different from one from an indexed page with no audience.

Marie Haynes, a specialist in Google's algorithms, indicated in her August 2024 newsletter that the leaked documents reinforced the idea that Google has systems for detecting low-engagement pages and that links from those pages may receive less algorithmic weight. Her analysis is available at mariehaynes.com.

Kevin Indig, an SEO consultant who has worked with large-scale technology companies, published on his blog in 2023 that DR and DA metrics are useful as quick signals of accumulated authority, but their predictive value deteriorates when not combined with URL-level traffic metrics. Indig argues that DR measures a stock of historical authority, while traffic measures the current relevance of a page to a real audience.

Spanish-Language Voices

Spanish-speaking specialists with documented track records at conferences such as BrightonSEO en Español and SEO Warrior have noted in public presentations from 2023 and 2024 that the LATAM market faces a particular distortion: there are sites with moderate DR (40–60) that have real organic traffic and active audiences, alongside sites with high DR built historically through link exchange networks that now have minimal traffic. In that scenario, using DR as the sole criterion can lead to purchasing links on sites that Google may be devaluing.

On the SEO en Español podcast (September 2023 episode), this tension was discussed specifically, and several participants agreed that the site selection process should always include a review of the estimated traffic for the specific URL where the link will be published — not just the root domain.

Points of Agreement Across Sources

Several areas of consensus emerge from the body of evidence reviewed:

• DR and equivalent metrics (DA, TF) are useful but incomplete proxies. No source reviewed — neither Google's official documentation nor the quantitative studies — validates DR as a sufficient standalone indicator.
• Google weighs the relevance of the linking page, not just the domain. Mueller's statements and the evidence from correlation studies point consistently in that direction.
• Real traffic to a URL signals that the page has an active audience, making it more credible as a link source. A link from a page that nobody visits is less likely to generate referral traffic and may also carry less algorithmic weight.
• Combining both metrics (domain DR + URL traffic) produces better decisions than using either one in isolation.

Points of Disagreement

Not all sources align on the same conclusions. There are at least three areas of genuine tension:

How Much Does Referral Traffic Actually Matter?

Some specialists — including analysts on the Ahrefs blog — argue that the referral traffic generated by a link (how many users actually click through) may be a signal Google uses to calibrate link value in real time. Others, such as the authors of the Backlinko analysis, suggest that the observed correlation between linking URL traffic and rankings could be an effect of third variables — such as topical relevance — rather than a direct signal that Google processes. The distinction matters: if Google uses referral traffic as an active signal, high-DR sites with low traffic are significantly less valuable; if it is merely a correlated variable, the effect may be more moderate.

Is DR Still the Best Available Signal for Quick Decisions?

Several industry practitioners make a practical argument: even if linking URL traffic is a more precise signal, DR is easier to obtain in a standardized way at scale. For campaigns that require evaluating hundreds of sites, analyzing traffic at the URL level significantly increases analysis time. This tension between precision and scalability has no single resolution — it depends on campaign budget and the level of quality control required.

Are Tool Traffic Estimates Reliable Enough?

Patrick Stox (Ahrefs) and other analysts publicly acknowledge that organic traffic estimates from tools like Ahrefs or Semrush carry variable margins of error — particularly in Spanish-speaking markets, where reference data volumes are lower than in English. This means the "linking URL traffic" signal is noisier for Latin American sites than for English-language sites, which limits the precision of that criterion in the market where most readers of this research operate.

Applied Perspective for the Hispanic and LATAM Market