Ahrefs DR4 Update: What It Means for Link Building and Buying Backlinks

If you’ve ever searched for backlinks, you’ve probably come across an offer that looked too good to be true: a website with DR 72, a design that doesn’t look like it’s from the dot-com era, and a backlink placement for just $40.

At first glance, it looks like a bargain. But there’s a catch: that impressive Domain Rating might not actually belong to the website you’re buying a link from.

At Serpzilla, we’ve seen this problem firsthand while analyzing our backlink inventory.

On November 5, 2026, Ahrefs announced DR4, the fourth version of its Domain Rating metric. The update addresses one of the biggest limitations of DR: websites appearing authoritative simply because they’re hosted under a powerful domain.

Let’s look at what’s changing, what our own data reveals, and what it means for your link building strategy.

TL;DR

• Ahrefs announced DR4 on November 5, 2026. Subdomains will receive their own Domain Rating scores instead of inheriting the root domain’s DR. Backlinks from websites with estimated organic traffic will also carry more weight.
• Our analysis of the Serpzilla inventory revealed that almost half of websites listed with DR 70+ were subdomains, free website builder pages, university subdomains, or websites registered under shared domain zones.
• Among DR 70+ placements priced below $50, approximately 60% belonged to these categories.
• DR4 should make backlink evaluation more accurate, but it’s still important to check organic traffic, topical relevance, and the actual placement page rather than relying on Domain Rating alone.

What’s Changing in Ahrefs DR4?

Domain Rating (DR) is an Ahrefs metric that measures the relative strength of a website’s backlink profile on a scale from 0 to 100.

Until now, one of its major limitations was how it handled subdomains.

A small website hosted on a powerful domain could inherit its parent’s high DR, even when it had very few backlinks of its own. This made some websites appear considerably more authoritative than their actual backlink profiles suggested.

With DR4, subdomains will receive individual Domain Rating scores based on their own backlinks.

Ahrefs shared several examples showing how the new calculations affect existing websites:

Source: Ahrefs DR4 announcement. The examples represent individual subdomains, not all websites hosted on these platforms.

The last two examples are particularly revealing.

A website created using a free website builder could previously display DR 92, putting it alongside some of the most authoritative domains on the internet. Under DR4, the same website might have a score close to zero.

Its backlinks haven’t necessarily changed. Ahrefs is simply evaluating the website on its own merits.

Organic Traffic Will Carry More Weight

Subdomain scoring isn’t the only change.

Ahrefs is also adjusting how backlinks contribute to Domain Rating. Links from websites with estimated organic search traffic will carry more weight in the new calculation.

According to Ahrefs, the update brings several notable changes:

• Around 50% fewer websites receive a Domain Rating. The smaller pool of rated domains means fewer websites can influence the scores of others.
• Spam domains lose significant DR. Websites labeled as spam with previous scores between 30 and 70 see median drops of approximately 15–20 points.
• Non-spam domains remain relatively stable. Their median DR changes are generally close to zero across most score ranges.

Ahrefs also tested the updated metric across 10 million domains and hosts. According to its research, DR4 shows a correlation with Google’s top-ranking positions more than 2.5 times stronger than DR3 when all hosts are considered.

However, there’s an important nuance: DR3 still correlates more strongly with rankings when looking exclusively at root domains. The overall improvement comes largely from how DR4 evaluates subdomains.

And remember, Domain Rating is an Ahrefs metric, not a Google ranking factor. A change in DR doesn’t automatically mean a website has become more or less valuable in Google’s eyes.

What Our Analysis of the Serpzilla Inventory Revealed

For those of us working with off-page SEO platforms, the problem of inflated Domain Rating isn’t new.

While reviewing the Serpzilla inventory, we noticed something striking: almost half of the websites listed with DR 70+ fell into categories where the displayed authority could be misleading.

These included:

• Subdomains inheriting authority from larger websites
• Websites created using free hosting platforms or website builders
• University subdomains benefiting from their parent domains’ authority
• Websites registered under shared domain zones

The situation was even more pronounced among inexpensive placements.

Approximately 60% of listings with DR 70+ priced below $50 belonged to these categories.

This helps explain why some high-DR backlinks can look surprisingly cheap.

The price isn’t necessarily wrong. The metric may simply be telling you more about the hosting domain than the individual website.

Think of it as a teenager wearing his father’s expensive suit. It looks impressive from a distance, but the authority doesn’t quite belong to him.

Of course, not every subdomain is a poor backlink opportunity. Some have strong editorial teams, substantial organic traffic, and valuable backlinks of their own.

The problem is relying on a borrowed score instead of evaluating the actual website.

DR4 should make this distinction much easier.

There’s Another Problem DR4 Might Not Solve: Shared Domain Zones

While Ahrefs is explicitly addressing subdomains, there’s another issue worth paying attention to.

Some domain zones allow independent websites to be registered one level below a shared domain. Examples include addresses such as name.it.com or name.eu.com.

These can function as separate websites owned by different people, even though they share the same parent domain structure.

Depending on how the rating is calculated, websites in these zones can display authority associated with the shared domain rather than their own backlink profiles.

For link buyers, the result can be similar to the subdomain problem: an apparently authoritative website that hasn’t necessarily earned its own high DR.

The DR4 announcement doesn’t specifically explain how these shared domain zones will be handled.

We therefore can’t assume the update will resolve every case.

Once the new scores are available, we’ll examine how DR4 evaluates these websites and whether the shared-zone issue persists.

How Should You Evaluate Backlinks After DR4?

Ahrefs plans to introduce DR4 in its regular interface on December 1, 2026. Until then, the new scores can already be checked using the Ahrefs Domain Rating API or the public DR4 preview tool.

You don’t need to abandon Domain Rating as a selection criterion. But this update is a good reason to reconsider how much weight you give it when choosing backlinks.

Here are four practical recommendations.

1. Look Beyond Domain Rating

A high DR alone has never guaranteed a valuable backlink.

Check whether the website receives organic traffic, ranks for relevant keywords, and publishes content related to your industry.

A website with DR 45 and consistent organic visibility may be a more suitable placement than a DR 80 website with no meaningful traffic.

2. Evaluate Subdomains Independently

Don’t assume a subdomain shares the authority or credibility of its parent website.

Check its individual backlink profile, organic performance, and publishing history.

The same principle applies to websites operating under shared domain zones. Treat them as independent properties rather than relying solely on the displayed domain-level metrics.

3. Revisit Your High-DR Shortlists

If you’ve built a list of potential backlink placements primarily around Domain Rating, it’s worth reviewing those websites again once DR4 launches.

Some scores may change dramatically, particularly for free-hosting websites and subdomains.

This doesn’t automatically make those placements worthless, but it does mean the original selection criteria may need another look.

4. Pay Attention to the Actual Placement

The authority of a website is only one part of the equation.

Where your backlink appears, how relevant the surrounding content is, and whether the page attracts genuine readers also matter.

A contextual backlink placed naturally within a relevant article can be a better opportunity than a poorly positioned link on a website with an impressive DR.

We explore these factors in more detail in our guide to contextual link building.

What Happens Next in Serpzilla?

At Serpzilla, our goal is to help SEO specialists make informed backlink decisions based on meaningful website metrics rather than inflated numbers.

That’s why we’re closely following the DR4 rollout.

Once Ahrefs releases the updated scores, we’ll update the Domain Rating data in Serpzilla so users can evaluate placements using the new metrics.

We’ll also pay particular attention to subdomains and shared domain zones, where the differences between DR3 and DR4 could be especially significant.

Keep an eye on our product updates for more information.

Final Thoughts

Ahrefs DR4 is an important improvement for anyone who uses Domain Rating to evaluate backlink opportunities.

By assigning separate scores to subdomains and giving more weight to backlinks from websites with organic traffic, the updated model should make it harder for weak websites to appear authoritative simply because of where they’re hosted.

But DR4 won’t replace proper backlink evaluation. Organic traffic, topical relevance, backlink quality, and placement context will still matter.

And as our analysis shows, there are still questions about how some shared domain zones will be evaluated.

One thing is clear: the days of relying on borrowed Domain Rating may finally be coming to an end.