Domain Rating, or DR, is Ahrefs' metric that measures the relative strength of a site's backlink profile. For expired domain buyers, a good domain rating depends on what you're looking for: DR 20-40 signals a domain with genuine backlinks worth investigating, while DR above 50 suggests established authority. The critical thing to understand is that DR uses a logarithmic scale, so a jump from 20 to 30 is not the same as from 70 to 80.
What Domain Rating is and who computes it
Domain Rating is an Ahrefs metric, running from 0 to 100, that measures the relative strength of a site's backlink profile. Unlike a simple backlink count, DR evaluates the quality of the referring domains that link to a site. Links from strong sites generally carry more weight than links from weak ones. This recursive quality measure is what makes DR useful for domain evaluation: it captures not just "how many sites link to you" but "how authoritative are those sites?"
How Domain Rating is calculated
Ahrefs builds DR from two elements: the count of referring domains (distinct domains linking to the target), and the strength of those domains themselves. A domain with 50 referring domains from mid-authority sites will have a higher DR than a domain with 300 referring domains from low-authority sites.
The calculation ignores several factors that matter elsewhere. Topic relevance plays no role: a cooking blog and a gambling site could both have DR 40. Traffic numbers do not affect DR. Neither do spam signals. The metric measures only backlink strength, period. This is both a strength and a limit: DR tells you about link authority, nothing else.
The logarithmic scale: why 20-30 is not like 70-80
Domain Rating is logarithmic, not linear. This means each point higher requires exponentially more backlink strength at the top of the scale than at the bottom. The gap between DR 20 and DR 30 represents a much smaller increase in actual authority than the gap between DR 70 and DR 80.
Why does this matter? Because it shapes how you read the metric. A jump from DR 15 to DR 25 is a substantial gain in backlink strength, even though it looks like a small number. Conversely, two domains both in the DR 75-85 range are much closer in absolute authority than it might appear. If you are comparing expired domains, you cannot treat all 10-point differences the same.
In practice, the effort compounds at the high end: each extra DR point costs far more link strength than the one before it. There is no linear relationship between link count and score.
What counts as a good Domain Rating
The answer is context-dependent. For expired domain acquisitions, the practical thresholds are:
- DR 0-10: Minimal backlink profile. Very risky unless the domain name has intrinsic value.
- DR 10-20: Some backlinks, but modest authority. Low risk, low upside. Useful if the domain is topical and has clean history.
- DR 20-40: The practical sweet spot for many expired domain buyers. The domain earned links from other sites at some point, which can signal it was a real site, though DR alone cannot prove that. hunter.domains filters most domains below a DR threshold to avoid time-wasting junk.
- DR 40-50: Strong authority. If the archive history is clean and topical, this is a solid acquisition target.
- DR 50+: High authority. Expect close examination of history and backlink quality. Older, high-DR domains can have inflated ratings from outdated links or taken-over backlink profiles.
Remember: higher DR does not guarantee value. A DR 60 domain with a spam history and unrelated backlinks is worse than a DR 35 domain with clean topical links.
What Domain Rating cannot see
Domain Rating is a backlink strength metric. It reveals nothing about:
- Topic relevance: Links can come from any industry. A domain with DR 40 from gambling and finance backlinks is useless if you plan to build a productivity blog.
- Spam signals: Spammy referring domains still boost DR. A site could have DR 55 from private blog networks or parasite sites. Majestic Trust Flow is better at catching this problem.
- Traffic: DR and traffic are independent. A site can have high DR and zero traffic if it dropped rankings, or low DR and solid traffic if the backlinks were recently built.
- Google penalties or manual actions: Ahrefs cannot see whether Google has penalised a domain, and neither can any other third-party tool: manual actions are visible only to the verified owner in Search Console. You must check the archive and index status yourself.
This is why evaluating an expired domain requires multiple metrics: Trust Flow to check backlink quality, referring domain count to check concentration risk, and archive review to spot misuse. DR alone is incomplete.
Checking Domain Rating for free
DR is Ahrefs' metric, so the source is Ahrefs. Ahrefs offers some free tools, and Moz offers free lookups for its own Domain Authority metric, but what each free tier shows changes over time, so check their sites for the current limits.
For expired domains, free tools can give you a working estimate. Paid subscriptions generally offer deeper backlink breakdowns and referring domain detail, useful if you plan to revive the domain post-purchase.
Reading Domain Rating on an expired domain
When you find a domain worth investigating, examine DR with these context clues:
- Referring domain count: A DR 50 with only three referring domains is a red flag. One or two huge sites linked to it, but the profile is fragile. DR 35 with 60 referring domains is healthier and more resilient.
- Domain age: A high DR that built up over many years is usually more believable. Newer domains with the same DR deserve more scrutiny, since it may point to aggressive linking or artificial building.
- Trust Flow relative to Citation Flow: Trust Flow from Majestic is your quality check. If a domain shows DR 50 but Majestic TF is 8 and CF is 40, the backlinks are low-quality and spammy. A balanced TF/CF profile is safer than a wide gap.
A worked example
Suppose you are comparing two expired domains in the same niche. Domain A has DR 38, 120 referring domains, was registered in 2006, and Majestic TF of 18. Domain B has DR 42, 15 referring domains, was registered in 2019, and Majestic TF of 6. Which is better?
Domain A looks more solid. The higher referring domain count (120 vs 15) means the authority is spread across many sources, not concentrated. The older registration date (2006) suggests the domain earned its links over time, not suddenly. The Trust Flow of 18 is healthy relative to the DR. Domain B's concentrated profile and recent registration raise questions: did it build DR artificially through a few high-authority links, or did the previous owner use PBN tactics? The low TF relative to DR is a warning sign.
This is why evaluating an expired domain is not about chasing the highest DR number. Context matters enormously.
hunter.domains surfaces domains pre-filtered by DR, Trust Flow, archive history and multiple risk signals, so you can focus on the shortlist rather than sorting spam.
Frequently asked questions
What is a good domain rating?
For expired domains, DR 20-40 is a practical target for most buyers. It indicates the domain had real backlinks and served a genuine purpose. Above 50, inspect the backlink profile and history closely for age and quality. Below 10, the domain rarely justifies the acquisition cost unless the name itself is premium.
Is domain rating the same as Domain Authority?
No. Domain Rating is Ahrefs' metric. Domain Authority, or DA, is Moz's metric. They track different backlink data, use different algorithms and often disagree. The same domain might show DR 35 and DA 28, or vice versa. Both are useful, but they are not interchangeable. See Domain Rating vs Domain Authority for a full comparison.
How do you increase domain rating?
If you own the domain, you increase DR by earning backlinks from high-authority sites in your topic. This is long-term SEO link building, not a quick fix. For an expired domain you plan to revive, you start with whatever DR it has at purchase, then build from there through content and outreach. Buying PBN or bulk backlinks is both risky and detectable by modern link analysis tools.
