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Ahrefs shows a dozen metrics, and only a few of them fit any one decision. What DR, UR, Ahrefs Rank, organic traffic, traffic value, keyword difficulty and traffic potential actually measure, where they get over-read, and which number answers which question.
David Hahn · August 20, 2026 · 13 min read
The short version
Ahrefs metrics are the numbers of the tool vendor Ahrefs. They describe what its index holds about a domain, a subpage or a keyword.
Ahrefs runs its own crawlers and database. Ahrefs Rank, Domain Rating and URL Rating were invented by this company and appear in no Google product.
One point applies to every value on this platform. They are analysis and comparison figures inside a piece of software, and Google names none as a ranking factor.
Other vendors keep their own numbers. Moz computes Domain Authority, Majestic computes Trust Flow and Citation Flow. None converts into another.
Ahrefs keeps a help page for each metric, plus guides and further resources. This article sorts them by decision.
Ten values show up in almost every report. The table shows the level each metric works on.
| Metric | Level | What it measures |
|---|---|---|
| Domain Rating (DR) | domain | strength of the backlink profile |
| URL Rating (UR) | single page | strength of links to that page |
| Ahrefs Rank (AR) | domain | position among all domains |
| Referring domains | domain or page | number of linking websites |
| Organic Traffic | domain, folder, page | estimated clicks from Google per month |
| Organic Keywords | domain or page | keywords ranking in the top 100 |
| Traffic Value | domain or page | price of the same clicks as ads |
| Keyword Difficulty (KD) | keyword | referring domains of the top 10 |
| Traffic Potential (TP) | keyword | traffic of the page at position 1 |
| Health Score | your own site | share of internal URLs without errors |
Three groups sit in that list. Link values are computed, traffic values estimated, keyword values describe the search results for one query.
These three link values sit side by side in Site Explorer and describe backlink profiles from three angles.
Domain Rating shows the strength of a website's backlink profile from 0 to 100. Only dofollow links enter the calculation.
How the value is built, and why it falls without a lost backlink, is covered in the article on Domain Rating.
URL Rating measures the same strength for a single page. Internal links count here, while they leave DR untouched.
Ahrefs writes that UR correlates better with Google rankings than DR. The comparison sits in the same article.
Referring domains count the websites sending at least one backlink. A website that links a hundred times still counts once.
What the number means when you buy is covered in the article on referring domains.
Ahrefs Rank sorts every website in the database by the size and quality of its dofollow referring domains. Position 1 is Facebook, 2 is X, 3 is YouTube. (Source: Ahrefs, updated 31 October 2025)
AR is therefore a ranked list and not a score. Domain Rating is the coarser version of the same ordering.
Ahrefs names two properties. The rank can fall even when your domain lost nothing. At the lower end it swings hard, because one link moves many positions.
When buying, AR is the least useful value here. Two publishers at rank 900,000 and 1,400,000 barely differ.
Organic Traffic states how many clicks from Google a website, a folder or a URL gets per month. Ahrefs explicitly calls the value an estimate. (Source: Ahrefs, updated 18 June 2026)
Ahrefs collects every keyword the target ranks for in organic search. Each contributes position, monthly search volume and an assumed click-through rate. The sum is the organic traffic figure.
Three of those inputs are themselves estimates. Ahrefs writes that not all variables in the formula can be one hundred percent accurate.
Google Search Console counts how often somebody clicked from Google to your own site. (Source: Google) That is a measurement.
Google Analytics shows total traffic, including direct visits, paid clicks and social referrals.
For third-party domains that measurement does not exist. Comparing two publishers still works, because both estimates use the same formula.
Organic Keywords is the number of keywords across all countries where a target sits in the first 100 search results. (Source: Ahrefs, updated 31 October 2025)
The cut-off at 100 explains a common misreading. A domain with 40,000 organic keywords can hold most at position 60. No clicks happen there.
The number becomes useful next to traffic. Few keywords with high traffic point to strong positions, many keywords with low traffic to the opposite.
Which keywords they are matters just as much. The report of the same name in Site Explorer shows whether a website covers your topic.
Traffic Value is the monthly amount the same traffic would cost as paid ads. Ahrefs multiplies estimated traffic per keyword by its cost per click. That money was never spent.
The common phrasing about the financial value of organic traffic only half fits. What is meant is the ad price of the same clicks, not revenue.
The number stays useful anyway. It separates two domains with equal traffic by buying intent. 5,000 clicks on recipes cost less than 5,000 on insurance.
Keyword Difficulty estimates from 0 to 100 how hard a ranking on page one of Google will be. One input drives it. Ahrefs counts the referring domains of the ten leading organic results. (Source: Ahrefs, updated 31 October 2025)
Ahrefs states explicitly that KD takes no on-page factors into account. Five inputs that shape a keyword ranking are missing:
The right reading follows. KD estimates link demand and not the odds of success. A KD of 8 can be out of reach when ten brand pages own the search results.
Traffic Potential is the organic traffic the page at position 1 gets from all the keywords it ranks for. (Source: Ahrefs, updated 31 October 2025)
The gap to search volume is the point here. Search volume counts one query, Traffic Potential a topic.
A keyword with 300 searches a month can carry a traffic potential of 9,000, because the page at position 1 ranks for hundreds of related queries.
For keyword research that is the more usable figure.
Ahrefs bundles several tools into one SEO suite. Every module brings its own features and reports.
The Health Score from Site Audit shows the share of internal URLs without errors. Warnings and notices never lower it.
A Health Score of 92 says nothing about rankings and a lot about your own subpages.
A single-metric explainer says what a number measures. In daily work the question runs differently. Which number do I need for which decision?
| Decision | Metric | Why this one |
|---|---|---|
| Pre-sort a publisher list | Domain Rating | rough strength of the link profile |
| Check the page a placement sits on | URL Rating | rankings happen at page level |
| New source or duplicate | Referring domains | one placement adds at most one |
| Does the publisher have an audience | Organic Traffic | estimated clicks per month |
| Does the publisher fit the topic | Organic Keywords | shows what a domain ranks for |
| Judge price performance | Traffic Value | a comparison in money, not points |
| Pick a topic for your own content | Traffic Potential | traffic of the topic, not volume |
| How many sources a keyword needs | Keyword Difficulty | referring domains of the top 10 |
| Find errors on your own site | Health Score | share of error-free internal URLs |
| Place a competitor in the field | Ahrefs Rank | position among all domains |
Two rows are missing on purpose. No Ahrefs metric measures topical fit between publisher and landing page, and none says whether an editorial team runs a website.
In our experience those two decide the effect of a placement more often than any score.
Sentences circulate about this product that can be checked against the documentation. We looked up six of them.
| Claim | Finding |
|---|---|
| Over 500,000 users work with Ahrefs worldwide | does not hold. The figure appears on no vendor page |
| Ahrefs has one of the largest backlink indexes | vendor statement. No independent measurement of index size exists |
| Ahrefs offers one of the largest keyword databases | vendor statement. Only what the vendor reports can be checked |
| Keyword Difficulty estimates the difficulty of the top 10 | holds in part. Only referring domains enter the calculation |
| Traffic Value is the financial value of organic traffic | holds once refined. It is the ad price of the same clicks |
| Health Score is the share of error-free internal URLs | holds. That is the wording in the documentation |
Three findings deserve a paragraph of their own.
The vendor's review page reads "Over 50,000 companies choose Ahrefs to drive their marketing decisions". (Source: Ahrefs)
The home page runs a live counter labelled "users joined Ahrefs in the last 7 days". It counts sign-ups, including accounts that cost nothing.
Two units get mixed up in the circulating claim. Companies are paying customers, accounts are sign-ups. Between 50,000 and 500,000 sits a factor of ten.
On its own "Big Data" page Ahrefs writes "The world's largest index of live backlinks". (Source: Ahrefs) Nobody outside can verify it, because only the operator sees the index.
The same page reports 35 trillion external backlinks under the label "External backlinks history". History means every link ever found, not the links alive today.
For crawler activity Ahrefs points to Cloudflare Radar, an outside measurement. It counts bot requests and says nothing about database size.
The same applies to the keyword database. Ahrefs reports its size with different values across several own pages, and no second vendor measures along.
Ahrefs names neither a DR 40 nor a DR 15 threshold, which the Domain Rating article above covers. Google names no target ratio of referring domains to backlinks, which sits in the referring domains article. Documented correlations between backlink counts and rankings run from 0.19 to 0.30, checked in content vs backlinks.
Quality beats volume. In a report every row weighs the same, and the effect does not.
All ten metrics above rate size, strength or price. None rates whether an article fits your topic.
Not every page needs backlinks. In an SEO strategy aimed at visibility, landing pages with business value need the right sources.
Four traits separate a fitting placement from a random one:
None of these reads off a single metric. It takes several numbers and a look at the site itself.
Several metrics come together when you buy. A fixed order saves time.
GetMentioned replaces neither Ahrefs nor Semrush in this stack. Ahrefs supplies analysis and data, GetMentioned the placement. The GetMentioned Score brings price, SEO data, authority and likely impact together instead of judging publishers by one number.
MentionIQ analyses your website, your competitors and your key keywords and surfaces fitting link sources. For agencies, SEO experts and in-house marketing teams it runs per project.
The first thing I check on a publisher is what it ranks for in search. A high Domain Rating without matching keyword rankings is a no for me, however good the number looks at first glance.
Three sentences remain. Ahrefs metrics describe an index and not rankings. Link values are computed, traffic values estimated. Keyword Difficulty measures link demand.
Every decision has one fitting number and several unfitting ones. The table above maps them.
The numbers of the tool vendor Ahrefs. They include Domain Rating, URL Rating, Ahrefs Rank, referring domains, Organic Traffic, Organic Keywords, Traffic Value, Keyword Difficulty and Traffic Potential.
No. They are analysis and comparison values from one vendor, and Google names none of them.
On the referring domains held by the ten leading organic results. Ahrefs states that on-page factors do not enter the calculation.
It is an estimate from position, search volume and an assumed click-through rate. Ahrefs writes that the variables are not fully accurate.
Search volume counts one query. Traffic Potential counts the traffic of the page ranking first for it, across all its keywords.
That figure appears on no vendor page. Ahrefs writes on its review page that over 50,000 companies use the platform.
No. The SEO data in the marketplace is enough to compare publishers. Ahrefs is the wider platform for SEO professionals and covers site audits, rank tracking and keyword research.
About the author
Managing Director, GetMentioned
David has been building link acquisition and digital PR processes since 2016, first as an agency under SEO Galaxy, today as a platform with GetMentioned. He has scaled his own projects from zero to seven-figure monthly traffic and delivered thousands of campaigns for clients. Here he writes about what works in practice, and about what only costs budget.
Compare publishers, SEO data and prices in one place and book the placements that fit.
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