DA vs DR is one of the first comparisons you run into when you start buying links. Almost every marketplace listing shows one or both, and prices often climb with them. But neither number comes from Google, and both can be pushed up without the site getting any better.
This guide explains what each metric is, how it is calculated in broad terms, why it can mislead you, and which signals deserve more weight when you decide what a link is worth.
What Moz DA and Ahrefs DR are
Domain Authority (DA) is a score from Moz. It is meant to predict how likely a domain is to rank in search results compared with other domains. It runs from 1 to 100.
Domain Rating (DR) is a score from Ahrefs. It measures the relative strength of a domain’s backlink profile compared with other domains in the Ahrefs index. It also runs from 0 to 100.
Both are third-party estimates. Google does not use DA or DR, and neither tool has access to Google’s ranking data. They are useful shortcuts for sorting sites, nothing more.
How they are calculated, in broad terms
Neither company publishes its full formula, but the general approach is known:
- DR looks mainly at how many unique domains link to a site and how strong those linking domains are themselves. Links from high-DR sites count more, and a domain that links out to many sites passes less to each one.
- DA also starts from links, but Moz uses a model trained to predict ranking ability, so it blends several link-based factors into one score.
Both scales are logarithmic. Moving from 20 to 30 is much easier than moving from 70 to 80. Both are also relative, so a site’s score can drop when the rest of the web grows, even if nothing changed on the site.
Because each tool has its own index and method, the same site can show a DA of 45 and a DR of 60, or the other way round. Neither is wrong. They are measuring different things with different data.
Why DA and DR can be inflated
Since both metrics are driven by links, anyone who wants a higher score can build links to raise it. That is exactly what happens with many sites that sell placements.
- Link schemes and PBNs. A network of sites linking to each other can push scores up quickly.
- Cheap high-DR links. Bulk links from sites that already have high scores but no real audience can lift a target’s DR.
- Expired domains. An old domain with a strong link profile can be rebuilt as a new site that keeps the score but has nothing to do with the original.
- Metric-only focus. Some sellers grow DR on purpose because they know buyers filter by it.
The result is a site with a DR of 70 and almost no organic traffic. On paper it looks strong. In practice a link from it may carry little value. Our guide on spotting inflated guest post prices covers this pattern in more detail.
Why link prices often follow DR and DA
Buyers sort and filter by these metrics, so publishers price by them too. A site that crosses DR 50 or DA 50 can often raise its rates, because more buyers will now see it in their filters. Marketplaces also display the numbers prominently, which reinforces the habit.
That does not mean the price is fair. It means the price reflects what buyers react to. When you compare DA vs DR for a purchase, remember that a high score explains why a site charges more, not why you should pay it. For other price drivers, read what influences the cost of a backlink.
Better signals than DA vs DR
Use domain authority metrics as a first filter, then look at signals that are harder to fake:
| Signal | What to look for | Why it matters |
|---|---|---|
| Organic traffic | Real estimated traffic, not just a high score | Shows Google sends visitors to the site |
| Traffic trend | Stable or growing over the past year | A sharp drop can point to a penalty or a sold site |
| Relevance | Content close to your topic and audience | Relevant links make more sense to readers and search engines |
| Outbound link patterns | Few unrelated or spammy outbound links | Sites that link to anyone lose value over time |
| Real content | Articles written for readers, not just for links | Separates real publications from link farms |
Our guide to what makes a high-quality backlink goes through these checks step by step.
A simple checklist for paying a fair price
- Check both DR and DA, but only to filter out obviously weak sites.
- Look at organic traffic and its trend. A high score with flat or falling traffic is a warning sign.
- Confirm relevance. Would a reader of that site plausibly care about your page?
- Scan outbound links. Open a few recent posts and see who else they link to.
- Compare the price across marketplaces. The same domain can be listed at different prices. Paste it into the free LinkAcquire price checker to see live offers from partner marketplaces side by side, plus links to check others. Partners are added and removed over time.
- Compare against similar sites. As a rough guide, small niche blogs often cost about $20 to $100, mid-tier sites $100 to $500, and strong high-traffic sites $500 to several thousand. A high price needs a reason beyond the score.
- Know the rules. Google’s spam policies say paid links should use rel=”sponsored” or nofollow, and buying links to manipulate rankings carries risk. No metric guarantees rankings.
So, DA or DR?
If you must pick one, many buyers find DR more transparent because it is tied directly to the link profile. But the better answer is neither on its own. Use them to narrow the list, then decide what to pay based on traffic, relevance and the price you can actually get for that domain.
FAQ
Does Google use DA or DR?
No. Both are third-party metrics from Moz and Ahrefs. Google has its own systems and does not use either score.
Is a higher DR always worth a higher price?
No. A high DR with little organic traffic or many spammy outbound links can be worth less than a lower-DR site that is relevant and has real readers.
Why do DA and DR differ so much for the same site?
Each tool has its own link index and its own method. They measure similar things with different data, so the numbers rarely match.
What DR should I look for when buying links?
There is no magic threshold. Set a sensible minimum to filter out weak sites, then judge each one on traffic, relevance and price.
Metrics tell you where to look. Prices tell you what you will pay. Sign up to LinkAcquire for free and compare what each domain costs across marketplaces before you buy.