"DA 50+ backlinks", "DR 70 guest posts", "high authority links": scroll through any backlink marketplace and authority metrics are everywhere. They're useful, but they're also the most gamed numbers in SEO. This guide explains what high DA backlinks really are, why authority backlinks can still be worthless, and how to tell a genuinely strong link from an inflated metric.
What Is Domain Authority (DA)?
Domain Authority is a score from 1 to 100 created by Moz to estimate how likely a website is to rank, based largely on its link profile. Similar metrics include Ahrefs' Domain Rating (DR), Semrush's Authority Score (AS) and Ubersuggest's Domain Authority.
The key point: these are third-party estimates, not Google metrics. Google doesn't use DA or DR. Moz itself describes DA as a comparative metric rather than a ranking factor.
Why High DA Backlinks Can Be Valuable
- Sites with strong, genuine link profiles tend to be trusted publications with real audiences.
- Links from them often bring referral traffic and credibility as well as SEO value.
- DA is a quick way to shortlist prospects when you're researching hundreds of sites.
Why High DA Alone Isn't Enough
DA can be manipulated
Because DA and DR are calculated from links, sellers can inflate them by pointing large numbers of spam links at a domain. The number goes up; the real quality doesn't.
Relevance matters more
A DA 30 site in your exact industry will usually do more for you than a DA 70 general "write for us" blog that publishes anything for a fee.
The page matters, not just the domain
A link on a new, orphaned page deep inside a big site may carry little weight. A link in a well-linked, frequently visited article carries much more.
Link-selling sites get devalued
Sites that openly sell links to anyone often have their outbound links discounted by Google. Their DA stays high, but the value of a link from them may be close to zero. Google's link spam policies explain why.
How to Vet a High-Authority Site (Checklist)
| Check | Good sign | Warning sign |
|---|---|---|
| Organic traffic | Steady or growing traffic in SEO tools | High DA but almost no traffic |
| Topic focus | Clear niche related to yours | Covers everything from crypto to recipes |
| Outbound links | Natural, relevant links | Every post has commercial links to unrelated sites |
| "Write for us" page | Editorial standards listed | Price list for "dofollow posts" |
| Content quality | Original, edited, with author bios | Thin, spun or AI-filler articles |
| Traffic geography | Matches your target market | Traffic from unrelated countries |
DA vs DR vs Authority Score
- Moz DA: machine-learning model of ranking likelihood based on links.
- Ahrefs DR: strength of a site's backlink profile on a logarithmic 0–100 scale.
- Semrush Authority Score: combines link data with organic traffic and spam signals.
Use whichever tool you have consistently, and always pair it with the manual checks above.
Better Metrics to Focus On
- Relevance to your topic and audience.
- Real organic traffic to the site and ideally the linking page.
- Editorial placement inside useful content.
- Referral potential: would anyone actually click it?
These factors are covered in more depth in SEO backlinks explained and dofollow backlinks: what they are.
Should You Buy High DA Backlinks?
Buying links that pass ranking credit is against Google's guidelines, and "high DA" offers are a favourite of low-quality sellers precisely because buyers trust the number. If you do work with a provider, insist on relevance, live URL reports and transparency. Read 10 things to know before you buy backlinks.
Frequently Asked Questions
What is a good DA for backlinks?
There's no magic number. A relevant DA 20–40 site with real traffic can be an excellent link. Judge the site, not just the score.
Does Google use Domain Authority?
No. DA is a Moz metric. Google has its own systems and doesn't use third-party authority scores.
Can high DA backlinks hurt my site?
Links from high-DA sites that exist mainly to sell links can be ignored by Google, and patterns of manipulative links can create risk. Relevance and editorial placement matter most.
How do I increase my own Domain Authority?
Earn links from relevant, reputable sites over time. DA rises as a side effect of a genuinely stronger link profile.
Get Authority Links That Are Actually Relevant
Every site in our link building packages is checked for traffic, relevance and editorial quality, not just DA. Request a free backlink review.
SuperSEOPlus Editorial is the editorial byline for articles published on SuperSEOPlus. It is a publication byline, not an individual author. The guides cover SEO, local SEO, link building, content marketing, WordPress and digital marketing, and aim to explain how these topics work in practical terms. Where an article recommends third-party tools or products, any affiliate relationship is disclosed in the article. We do not guarantee rankings, traffic or income.
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