Types of Backlinks: Which Ones Count, Which Ones Hurt
"Number of backlinks" is close to a meaningless metric. One editorial link from a respected industry publication can outweigh a thousand directory listings. This is a guide to telling those apart — what actually builds authority, what does nothing, and what quietly hurts.
The four signals that decide a link's worth
Before categories, learn the criteria. Every link can be judged on four things:
- Relevance — is the linking site about your topic? A link from a roofing blog to a roofer is worth far more than one from a random lifestyle site.
- Authority — is the site trusted, and does it get real organic traffic? Traffic is the honest check; authority scores can be gamed.
- Placement — is the link inside editorial content, or buried in a footer, sidebar, or author bio? In-content links carry the most weight.
- Naturalness — was it earned because someone found your page useful, or manufactured?
One link that satisfies all four beats several hundred that satisfy none.
Links that build real authority
| Type | What it is | Why it works |
|---|---|---|
| Editorial | A writer cites you in their article because you're useful | The gold standard — relevance, authority, and placement at once |
| Digital PR | Coverage earned with original data, research, or a story | Scales: one asset can earn dozens of links |
| Guest contribution | A genuine article on a relevant publication | Works when the site is real and the content is good |
| Resource page | Inclusion on a curated "useful links" page | Highly relevant and usually long-lived |
| Unlinked mention | Someone named you without linking; you ask | Easiest win available — the goodwill already exists |
Links that are fine but do little
Not harmful, just not the engine of growth people expect:
- Business directories & citations — necessary for local SEO verification, but not an authority strategy.
- Social profiles — nofollow, no direct ranking credit, though useful for discovery and brand.
- Comment and forum links — almost always nofollow; valuable only if the community sends real traffic.
Do these once, correctly, then stop expecting rankings from them.
Links that can actively hurt
- Paid links that pass ranking credit — against Google's guidelines and a genuine penalty risk.
- Private blog networks (PBNs) — sites that exist only to link. When the network is found, everyone in it loses.
- Mass directory submissions — hundreds of low-quality listings, the signature of automated cheap SEO.
- Irrelevant foreign-language spam — usually negative SEO or a bad vendor's leftovers.
In most cases Google simply ignores obvious spam rather than penalizing you. But deliberate schemes are a real risk, and the cleanup costs far more than the links ever gained — a pattern we cover in tactics that get you penalized.
Dofollow vs nofollow, honestly
A dofollow link passes ranking signals; a nofollow link tells search engines not to pass that credit — and Google now treats it as a hint rather than an absolute rule. More importantly, nofollow links still send real visitors and build brand recognition.
A natural profile contains both. A profile of nothing but dofollow links looks engineered, because real link profiles never look like that.
What a healthy profile looks like
- A mix of dofollow and nofollow
- Varied anchor text — brand name, URLs, and natural phrases, not the same keyword repeatedly
- Steady growth over time rather than sudden spikes
- Mostly relevant sites, with some general ones — as happens naturally
If your profile looks too perfect, that itself is a signal. An SEO audit includes a backlink review that flags both weakness and risk.
Frequently asked questions
What's the difference between dofollow and nofollow?
What makes a backlink high quality?
Can backlinks hurt my rankings?
Keep reading
- 5 Link Building Strategies That Still Work — the tactics themselves.
- How to Get Backlinks With No Authority — starting from zero.
- What Is SEO? — where off-page fits in the whole picture.