SEO Metrics Explained: DR, DA, TF, Traffic and Everything Else
Confused by DR, DA, Trust Flow and organic traffic? Learn what common SEO metrics mean, what they do not mean and how to use them when buying guest posts.
Metric terminal
Several clues. One decision.
DR
72
Ahrefs
DA
61
Moz
TF
24
Majestic
Organic traffic
38,240 est./mo
SEO tools love numbers.
DR 72.
DA 61.
TF 24.
Traffic 38K.
Very scientific.
Until you realise none of these numbers comes directly from Google.
SEO metrics are estimates created by tools such as Ahrefs, Moz, Majestic and Semrush.
They help you compare websites.
They do not tell you whether a guest post will rank your page.
That distinction will save you money.
The short rule
Metrics create the shortlist. Manual review makes the decision.
Never buy a placement because one number looks good.
Check:
- Authority
- Traffic
- Traffic trend
- Country
- Topic
- Content quality
- Link profile
- Placement type
- Price
One metric is a clue.
Several metrics create context.
SEO metrics at a glance
| Metric | Provider | What it measures |
|---|---|---|
| DR | Ahrefs | Strength of a domain’s backlink profile |
| UR | Ahrefs | Strength of one page’s backlink profile |
| DA | Moz | Predicted ranking strength of a domain |
| PA | Moz | Predicted ranking strength of one page |
| TF | Majestic | Link quality and proximity to trusted sites |
| CF | Majestic | Link quantity and potential link influence |
| Topical TF | Majestic | Topics associated with a site’s backlinks |
| Authority Score | Semrush | Combined authority, traffic and spam assessment |
| Organic Traffic | Ahrefs/Semrush | Estimated monthly visits from search |
| Organic Keywords | Ahrefs/Semrush | Search terms for which a site ranks |
| Referring Domains | Multiple tools | Unique websites linking to a site |
| Backlinks | Multiple tools | Total individual links pointing to a site |
| Traffic Value | Ahrefs | Estimated PPC value of organic traffic |
| Spam Score | Moz | Similarity to patterns found on penalised sites |
What does this number actually tell you?
Choose a metric to separate its useful signal from the conclusions it cannot support.
Ahrefs
Domain Rating
Measures
Relative strength of a domain’s backlink profile.
Useful for
Comparing link authority among broadly similar websites.
Does not prove
Traffic, relevance, editorial quality and page-level strength.
Different tools use different databases.
That means different tools produce different numbers.
A website can have:
- DR 52
- DA 38
- TF 21
- Authority Score 44
Nothing is broken.
The tools are measuring different things with different crawlers and formulas.
Are DR and DA Google ranking factors?
No.
Google does not receive a website’s DR from Ahrefs.
It does not receive DA from Moz.
It does not open Majestic and admire your Trust Flow.
These are third-party metrics.
Ahrefs explicitly states that there is no evidence search engines use DR, DA or similar authority scores as ranking factors.
Google has its own systems.
SEO tools try to model parts of those systems from outside.
Think weather forecast.
Useful.
Not weather.
Domain Rating explained
What is DR?
Domain Rating is an Ahrefs metric measuring the relative strength of a website’s backlink profile.
The score runs from 0 to 100.
Higher usually means the website has links from stronger domains.
Ahrefs calculates DR using factors including:
- The quality of linking domains
- The number of linking domains
- How many other domains those websites link to
- The strength passed through the link graph
DR is relative and logarithmic.
Moving from DR 20 to DR 30 is easier than moving from DR 70 to DR 80.
What DR is good for
DR is useful for quickly comparing the backlink strength of websites.
For example:
| Website | DR |
|---|---|
| New personal blog | 8 |
| Established niche publisher | 44 |
| Major industry publication | 78 |
| Global media brand | 92 |
Higher DR can indicate access to more link authority.
Can.
Not will.
What DR does not measure
DR does not directly measure:
- Organic traffic
- Content quality
- Topical relevance
- Editorial standards
- Brand recognition
- Whether Google trusts the site
- Whether the linking page is indexed
- Whether humans read the website
- Whether the site sells links to everyone with a credit card
A DR 70 website can be terrible.
A DR 25 website can be excellent.
Low DR also does not automatically mean spam. Ahrefs itself warns that new or legitimate websites can have low DR and that the metric should not be used alone to judge legitimacy.
The DR trap
A buyer sees:
DR 80 — $250
Great deal.
Then checks the site.
Traffic: 900.
Top keywords: celebrity ages.
Recent posts:
- Best VPN
- Best casino
- Best CBD oil
- Best accounting software
- Best dog food
That is not a publication.
That is a commercial link buffet.
The DR may be real.
The opportunity may still be bad.
URL Rating explained
What is UR?
URL Rating is Ahrefs’ page-level equivalent of DR.
DR evaluates the domain.
UR evaluates one specific page.
UR also runs from 0 to 100 and is based on the internal and external links pointing to that URL.
This matters because your backlink comes from a page.
Not a floating domain metric in the sky.
DR versus UR
Imagine a DR 85 news website.
Its homepage may have thousands of backlinks.
Your guest post is published at:
website.com/contributor/random-article-48392/
The new article has:
- No external backlinks
- One internal link
- No rankings
- No traffic
- No prominent category placement
Strong domain.
Weak page.
DR tells you about the neighbourhood.
UR tells you more about the house.
When UR matters most
UR is particularly useful for link insertions.
If you are adding a link to an existing article, check whether that exact page has:
- Backlinks
- Internal links
- Rankings
- Search traffic
- Historical visibility
A link from an established page can be more interesting than a brand-new guest post.
But only when the page is relevant.
A powerful article about lawnmowers is not automatically useful for an accounting platform.
Context still works weekends.
Domain Authority explained
What is DA?
Domain Authority is a Moz metric designed to estimate how likely a domain is to rank in search results.
The score runs from 1 to 100.
Like DR, it is primarily useful as a comparative metric.
The SEOlutions PR Portal displays DA alongside DR and TF so buyers can compare websites through more than one tool’s dataset.
DR versus DA
DR and DA are not interchangeable.
DR focuses heavily on:
- Backlink profile strength
- Linking domains
- Link equity distribution
DA aims to predict:
- Relative ranking strength
- Based on Moz’s link index and model
A site may have higher DR than DA.
Or higher DA than DR.
That is normal.
Do not search for the “correct” number.
There is no universal authority meter hidden in Google’s basement.
How to use DA
Use DA to compare similar publishers.
Good comparison:
- Two finance blogs
- Same country
- Similar traffic
- Similar content quality
- Similar placement type
Weak comparison:
- A local legal journal
- A global entertainment site
- A university
- A coupon directory
Authority metrics become less useful when the websites serve completely different purposes.
Page Authority explained
Page Authority is Moz’s page-level metric.
DA evaluates the domain.
PA evaluates an individual URL.
The logic is similar to DR versus UR.
For a new guest post, PA may initially be low.
That is expected.
For an existing-page insertion, PA can help determine whether the specific article already has authority.
Again:
Page metrics matter because the link lives on a page.
Google does not rank domains.
It ranks pages.
Trust Flow explained
What is TF?
Trust Flow is a Majestic metric that evaluates backlink quality.
It runs from 0 to 100.
Majestic starts with manually reviewed trusted seed websites and assesses how closely other sites are connected to that trusted part of the web.
In plain English:
Does this website receive links from websites that Majestic considers trustworthy?
What is a good Trust Flow?
There is no universal good TF.
A TF of 18 may be respectable for a small specialist publisher.
A TF of 18 may be weak for a major national newspaper.
Compare websites within the same category.
Do not compare your local plumbing journal to Wikipedia.
Wikipedia wins.
Move on.
What TF does not prove
High Trust Flow does not guarantee:
- Relevant content
- Search traffic
- Strong editorial standards
- A good linking page
- A fair price
- A permanent placement
It measures a link relationship.
Not the entire website.
Citation Flow explained
What is CF?
Citation Flow is another Majestic metric.
It estimates how influential a URL may be based largely on the quantity and strength of links pointing to it.
It also runs from 0 to 100.
The easiest way to remember the difference:
Trust Flow asks who links to the site.
Citation Flow asks how much link power is flowing toward it.
Trust Flow versus Citation Flow
Majestic recommends reading TF and CF together.
Example A
- TF: 32
- CF: 38
The values are reasonably close.
Potentially healthy.
Still needs manual review.
Example B
- TF: 7
- CF: 45
Lots of apparent link power.
Very little trust.
Potential red flag.
Could indicate:
- Low-quality link volume
- Automated links
- Directories
- Sitewide links
- Manipulated backlinks
- Historic domain abuse
Majestic describes TF as authority or quality and CF as popularity or volume. A large gap can be useful for identifying profiles that deserve more investigation.
Notice the wording:
More investigation.
Not instant rejection.
Metrics are not judges.
They are suspicious-looking detectives.
Read TF and CF together
This heuristic highlights profiles worth investigating. It is not a pass/fail formula.
TF ÷ CF
0.56
Investigate the gap
Link volume is outpacing trust. Inspect referring domains and domain history.
Topical Trust Flow explained
Topical Trust Flow categorises the topics associated with a website or page’s backlinks.
Majestic assigns topical categories such as:
- Business
- Computers
- Health
- Sports
- Society
- Recreation
- Finance
- News
The score estimates relative influence within each topic.
Why Topical Trust Flow matters
Suppose you are buying a link for a cybersecurity company.
Website A:
- DR 65
- TF 27
- Main topic: Arts/Celebrities
Website B:
- DR 43
- TF 22
- Main topic: Computers/Security
Website B may be the better fit.
Lower authority.
Higher relevance.
Google understands topics.
Your spreadsheet should too.
Topical TF is not perfect
Websites cover multiple subjects.
Categories can be broad.
Historic backlinks can distort the topic.
Use Topical Trust Flow as supporting evidence.
Then read the website.
Radical, I know.
Semrush Authority Score explained
Authority Score is Semrush’s combined metric for evaluating the quality of a domain or page.
It uses three broad components:
- Link power
- Estimated organic traffic
- Spam or manipulation signals
Semrush says the metric uses eight weighted factors across those components.
Why Authority Score can be useful
DR focuses heavily on links.
Authority Score also considers estimated traffic and signs of manipulation.
That can produce a more rounded first impression.
Still an impression.
Not a verdict.
A website can pass an automated spam check and still publish terrible content.
Machines have not yet eliminated terrible blogs.
They have increased production capacity.
Organic traffic explained
What does organic traffic mean?
Organic traffic is the estimated number of monthly visits a website receives from unpaid search results.
In the SEOlutions PR Portal, traffic is displayed to help buyers distinguish websites with visible search demand from sites carrying authority metrics but little apparent readership.
Is the traffic number exact?
No.
Tools such as Ahrefs estimate traffic by:
- Finding keywords for which the website ranks.
- Estimating monthly search volume.
- Estimating the click-through rate at each position.
- Adding the estimated clicks together.
Ahrefs explicitly describes organic traffic as an estimate rather than the website’s real analytics data.
Only the website owner can see more direct data in platforms such as Google Search Console or analytics software.
Why traffic still matters
Traffic helps answer:
- Does Google index and rank this website?
- Does the site have content people search for?
- Is visibility growing or falling?
- Which countries generate the visits?
- Which pages attract users?
- Are the rankings relevant?
A site with real rankings is usually more interesting than a site whose only achievement is a high authority metric.
Usually.
Not always.
Traffic quality beats traffic quantity
A site may have 100,000 estimated monthly visits.
Sounds great.
Then you check the keywords:
- Celebrity net worth
- Free movie download
- Football scores
- Currency converter
- Wordle answers
You sell enterprise software.
That traffic is not your audience.
Large traffic numbers can hide weak commercial relevance.
Ask:
What is the traffic about?
Not only:
How much traffic is there?
Traffic trend explained
The current traffic number is one frame.
The trend is the movie.
Check at least 12 to 24 months where possible.
Healthy patterns
- Stable long-term traffic
- Gradual growth
- Seasonal movement that matches the niche
- Recovery after temporary decline
- Increasing relevant keyword coverage
Warning patterns
- Sudden unexplained spike
- Sharp decline
- Traffic down 80% from its peak
- Repeated boom-and-bust cycles
- Growth from irrelevant keywords
- Traffic concentrated on one accidental ranking
A site with 15,000 stable visits can be better than one with 50,000 visits after falling from 600,000.
The second site has more traffic.
It also has a parachute problem.
Does a traffic drop always mean the site is bad?
No.
Traffic can fall because of:
- Seasonality
- Algorithm changes
- Lost rankings
- Tracking changes
- Keyword database updates
- Content removal
- Search-result changes
- A single high-traffic page declining
Investigate the cause.
Do not reject the site because a graph moved down for one month.
That is not analysis.
That is chart astrology.
The number is one frame. The trend is the movie.
Stable
A steady baseline is often more useful than a dramatic headline number.
Traffic country explained
Traffic location tells you where the publisher’s search visitors come from.
This matters.
A website may use a .com domain and English content while receiving most of its traffic from:
- India
- Pakistan
- The United States
- The United Kingdom
- Canada
- Australia
- Germany
None of those countries is automatically good or bad.
The question is whether the audience matches your campaign.
Example
You want to rank a UK insurance website.
Publisher A:
- DR 64
- Traffic: 50,000
- UK traffic: 3%
Publisher B:
- DR 43
- Traffic: 12,000
- UK traffic: 74%
Publisher B may be more useful.
Smaller number.
Better match.
Relevance is annoying like that.
Organic keywords explained
Organic keywords are search queries for which a website appears in search results.
Ahrefs counts keywords discovered in its own database, meaning the reported number is not every query the website ranks for.
Why keyword count matters
Organic keywords can reveal:
- Topical breadth
- Search visibility
- Commercial relevance
- Growth
- Decline
- Whether the site ranks for its claimed niche
A finance publication should rank for finance terms.
A technology publication should rank for technology terms.
A “business publication” ranking only for actors’ birthdays has chosen a creative interpretation of business.
Do not judge the count alone
A website ranking for 50,000 weak keywords is not automatically better than one ranking for 2,000 strong, relevant terms.
Check:
- Top keywords
- Search intent
- Ranking positions
- Traffic contribution
- Country
- Topic clusters
The keyword list tells the story.
The total count is just the headline.
Referring domains explained
A referring domain is a unique website linking to another website.
If Forbes links to a company ten times:
- Backlinks: 10
- Referring domains: 1
If Forbes, TechCrunch and Wired each link once:
- Backlinks: 3
- Referring domains: 3
Ahrefs uses this same distinction in its documentation.
Why referring domains often matter more than backlink count
A website can have one million backlinks from ten domains.
That sounds large.
It may come from:
- Sitewide footer links
- Navigation
- Widgets
- Blogrolls
- Repeated syndicated pages
Unique referring domains often provide a better sense of backlink diversity.
More is not always better.
But 500 links from 500 legitimate websites usually tell a more interesting story than 500 links from one sidebar.
Backlinks explained
A backlink is any link from an external page to another website.
One domain can create many backlinks.
Backlinks may be:
- Editorial
- Sponsored
- Nofollow
- Sitewide
- Contextual
- Image-based
- Redirected
- User-generated
- Directory-based
The total backlink count tells you almost nothing without context.
A million backlinks sounds powerful.
Until 990,000 come from one expired WordPress theme footer.
Big number.
Small hat.
Outgoing domains and outbound links
Outgoing domains are websites the publisher links to.
This is worth checking before buying a guest post.
Ahrefs notes that when a referring domain links to many different websites, the strength attributed across those linked domains is divided more widely.
Warning signs
- Links to thousands of unrelated commercial domains
- Casino, CBD, loans and software mixed together
- Several paid links in every article
- Repeated exact-match anchors
- No genuine editorial citations
- Obvious “write for us” footprints
- Every article linking to a new commercial site
A publisher is supposed to publish.
Not operate link Heathrow.
Organic traffic value explained
Traffic value estimates how much the website’s organic traffic might cost if purchased through pay-per-click advertising.
Ahrefs calculates it using estimated traffic and the CPC of ranking keywords.
When traffic value is useful
It can help distinguish between:
Informational traffic
- Quotes
- Definitions
- Celebrity searches
- General facts
Commercial traffic
- Software comparisons
- Financial products
- Legal services
- Business solutions
A site with lower traffic but high traffic value may rank for commercially important searches.
What traffic value does not mean
Traffic value is not:
- Revenue
- Profit
- Website valuation
- Actual advertising spend
- A guaranteed value for your backlink
It is a model.
Do not invoice your accountant with it.
Dofollow links explained
“Dofollow” is industry shorthand for a normal link without a nofollow, sponsored or similar qualifying attribute.
There is no rel="dofollow" requirement.
A standard hyperlink is followed by default.
Why buyers want followed links
Followed links may be considered within search engines’ link analysis systems.
That makes them attractive for SEO.
But the attribute alone does not make the link valuable.
A followed link from:
- An irrelevant page
- An unindexed page
- A spam site
- A hacked page
- An orphaned article
Can still be a poor placement.
Dofollow is a property.
Not a quality certificate.
Nofollow links explained
A nofollow link contains:
rel="nofollow"
The attribute was introduced to indicate that the publisher did not want to endorse or pass normal link signals through the link.
Google now treats nofollow as a hint rather than an absolute instruction for all search purposes.
Nofollow links can still provide:
- Referral traffic
- Brand awareness
- Visibility
- Credibility
- A natural-looking link profile
- Discovery
- Citations
A nofollow link from a major publication can have more business value than a followed link from “best-seo-news-blog-24.biz.”
Please do not register that domain.
Sponsored links explained
Sponsored links commonly use:
rel="sponsored"
Google recommends this attribute for links created through advertising, sponsorship or other compensation agreements.
A sponsored placement may still be useful for:
- Brand exposure
- Referral traffic
- Product launches
- PR
- Audience reach
- Reputation
- Category association
Do not evaluate PR placements using only “followed or not followed.”
A front-page mention can matter without passing traditional link equity.
Marketing existed before DR.
Barely.
Contributor content explained
Contributor content is published under a guest author, contributor or external expert rather than the publication’s core editorial team.
Contributor content can still be:
- High quality
- Relevant
- Indexed
- Read by humans
- Useful for brand building
But it is not identical to independent editorial coverage.
Check:
- Author identity
- Contributor section quality
- Article standards
- Indexation
- Internal linking
- Disclosure
- Whether contributor posts are isolated
“Published on a major site” can mean many things.
Check where.
Spam Score explained
Spam Score is a Moz metric intended to identify patterns associated with websites that have historically been penalised or banned.
It is not a Google score.
A high Spam Score does not prove a website has a penalty.
A low Spam Score does not prove a website is clean.
Use it as an investigation trigger.
Not an execution order.
What to inspect manually
- Domain history
- Outbound links
- Anchor patterns
- Traffic trend
- Indexation
- Content quality
- Topic consistency
- Ownership
- Malware or hacked pages
- Obvious link-selling footprints
One risk metric should never veto reality.
Or approve it.
Indexation explained
An indexed page is a page Google has added to its searchable index.
If a guest post is not indexed, it is unlikely to provide much organic visibility.
Check two things
Is the domain indexed?
Search for the brand and recent articles.
Are new posts indexed?
A domain can have thousands of indexed legacy pages while new contributor posts disappear into the void.
Check several recent URLs.
Not one.
Indexation is not ranking
Indexed means eligible to appear.
It does not mean:
- The page ranks
- The page gets traffic
- The link is valuable
- Google likes the article
- Anyone will ever see it
Being admitted to the stadium is not the same as winning the match.
Relevance explained
Relevance is not one metric.
It is a judgement based on:
- Website topic
- Section topic
- Page topic
- Audience
- Ranking keywords
- Anchor context
- Target page
- Geographic fit
Domain relevance
Is the overall publication connected to your industry?
Section relevance
Is the article published in a relevant category?
A general newspaper may have a strong technology section.
Page relevance
Does the specific article relate naturally to the page being linked?
Audience relevance
Would the publication’s readers care about the company?
This is why a lower-DR niche site can beat a high-DR general site.
The niche site makes sense.
Search engines appreciate sense.
So do readers.
How to read metrics together
Never ask:
Is DR 50 good?
Ask:
Is DR 50 good for this publisher, niche, traffic level, price and placement?
The highest number is not always the best placement
Serious consideration
The relevant specialist
Correct country, exact niche and stable traffic form a more coherent campaign story.
Example 1: The metric monster
- DR: 78
- DA: 65
- TF: 12
- Organic traffic: 700
- Traffic trend: down 92%
- Main topics: everything
- Price: $400
Verdict:
Probably pass.
Strong-looking authority.
Weak current reality.
Example 2: The relevant specialist
- DR: 41
- DA: 36
- TF: 22
- Organic traffic: 14,000
- Trend: stable
- Country: correct
- Topic: exact niche
- Price: $300
Verdict:
Worth serious consideration.
Lower DR.
Better fit.
Example 3: The small real publication
- DR: 24
- DA: 20
- TF: 16
- Organic traffic: 3,500
- Trend: growing
- Audience: highly relevant
- Real editorial team
- Price: $150
Verdict:
Potentially useful.
Especially for topical relevance, referral traffic or a local campaign.
Example 4: The famous media brand
- DR: 92
- Organic traffic: millions
- Link: nofollow
- Placement: branded contributor article
- Price: high
Verdict:
Potentially useful for PR and credibility.
Less compelling when the only objective is direct link equity.
Define the job before judging the tool.
The SEOlutions buyer framework
When reviewing a publisher in the SEOlutions PR Portal, use this order.
Review the publisher in this order
0/8
What matters most?
For most guest post purchases, use this hierarchy:
- Topical relevance
- Real organic visibility
- Traffic and keyword trend
- Editorial quality
- Link placement and context
- Audience and country
- Backlink-profile quality
- DR, DA and TF
- Price
Authority metrics matter.
They just do not deserve the throne.
Final rule
A good placement should make sense before you open Ahrefs.
The metrics should confirm the opportunity.
Not invent it.
SEO metrics FAQ
01What is a good DR for a guest post?
There is no universal good DR. Compare the publisher with relevant websites in the same niche. A DR 35 specialist site with stable traffic can be more useful than a DR 70 general site with collapsing visibility.
02Is DA or DR more important?
Neither is universally more important. DR measures backlink-profile strength using Ahrefs’ data. DA estimates relative ranking strength using Moz’s model. Review both, but prioritise relevance, traffic and manual quality checks.
03Is organic traffic more important than DR?
Often, but not always. Traffic shows that a website currently ranks and attracts search visibility. DR shows backlink strength. The best opportunities normally combine relevant traffic with a credible backlink profile.
04Can a website fake DR?
Authority metrics can be manipulated through redirects, expired domains and artificial link building. Check a high DR against traffic, rankings, content quality, domain history and outbound links.
05Is low traffic always bad?
No. Small specialist, local or B2B publications may have modest traffic but highly relevant audiences. Low traffic becomes more concerning when combined with declining rankings, weak content and broad link selling.
06Why do Ahrefs and Semrush show different traffic?
Both tools estimate traffic using their own keyword databases, search-volume estimates, ranking data and click-through models. Use the numbers for comparison and trend analysis, not as exact visitor counts.
07What is more important: backlinks or referring domains?
Referring domains usually provide a clearer view of link diversity. A website can have thousands of backlinks from one domain, but that still represents one referring domain.
08Does a nofollow link have value?
Yes. Nofollow links can generate referral traffic, credibility, brand awareness and a more diverse link profile. They may be particularly useful for PR and major media placements.
09Does high Trust Flow mean a site is safe?
No. Trust Flow is one indicator of backlink quality. You must still check traffic, content, outbound links, relevance and domain history.
10Should I reject a site with a high Spam Score?
Not automatically. Spam Score identifies patterns, not confirmed penalties. Use it as a reason to inspect the website more carefully.
Final takeaway
SEO metrics are filters.
Not guarantees.
Use DR to understand backlink strength.
Use DA for relative ranking potential.
Use TF and CF to inspect link quality and volume.
Use organic traffic to see whether the site has visibility.
Use keyword and country data to judge relevance.
Then open the website.
Read it.
Check the trend.
Inspect the page.
A good link should survive both tools and common sense.
Metrics first.
Manual review last.
Wallet after both.
Compare the metrics. Then inspect the publication.
Browse publisher inventory with DR, DA, TF, organic traffic, niche and pricing visible before you request a placement.
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