A backlink is a link from another website to your website. For search engines, a link like that can be a signal that your page is relevant, useful or trustworthy enough to point to. Their quality, their context and how natural they are count for more than the number of links.
Short answer: what is a backlink?
A backlink is an incoming link from an external website to your page. Think of it as a digital referral: another site is more or less saying your content is worth a look.
That’s why backlinks matter for SEO. They help search engines better understand how your page relates to other sources on the web.
Backlink meaning in plain language
In plain language, a backlink is a recommendation with a link attached. Not every recommendation carries the same weight, but the idea is simple: someone links to your website because it adds something.
Think of a restaurant guide. If a local newspaper mentions your place and links to your menu, that’s usually worth more than a random site with no connection to your subject. The analogy also shows straight away the difference between a stray link and a relevant backlink.
So a backlink isn’t just a technical element. It’s also a signal of context, reputation and coherence.
The difference between backlinks, internal links and external links
Links look alike, but the direction is what makes the difference. And that’s exactly where things often go wrong. It starts with logic in your own site and in the links pointing to it.
| Link type | Direction | Example | Main function |
|---|---|---|---|
| Backlink | From another site to your site | An industry blog links to your article | Authority, discovery, relevance |
| Internal link | From your page to another page on your site | From a blog post to the contact page | Structure, navigation, context |
| External link | From your site to another site | You link to a source | Source attribution, context, trust |
So a backlink is always incoming. An external link is outgoing, and an internal link stays within your own domain.
Why backlinks matter for SEO
Backlinks matter, but not as a standalone project. They’re part of the foundation of SEO, just like content, technical SEO and structure. Treating backlinks as a hype of their own is too narrow an approach. If you’re new to this, start with the SEO basics.
Giacomo Perticara puts it clearly: “SEO is not dead. But you’ll have to use it differently.”
Backlinks as a recommendation signal
Search engines use backlinks as an external signal. When several relevant websites link to the same page, that can indicate the page adds something.
That doesn’t mean every link moves you forward straight away. One link from a strong, relevant source usually says more than ten links from pages with no editorial value. Not every signal is strong, and not every link is a recommendation.
The link with E-E-A-T
Backlinks mainly touch on authority and trust within E-E-A-T. That framework centres on experience, expertise, authority and trust.
A backlink doesn’t automatically prove your content is good. But when trade media, industry platforms or sites in your subject area link to you, that does count as a form of external validation. You build authority with content and a reputation that earn links.
What makes a backlink high quality?
A high-quality backlink fits your subject, comes from a trustworthy source and sits in a natural context. That’s the core of it.
Giacomo Perticara puts it like this: “We don’t build pages, we build logic.”
Relevance and context
A good backlink comes from a page whose content ties in with your subject. If you write about technical SEO, a link from a marketing or development platform makes more sense than one from a random recipe blog.
The text around the link counts too. If your link sits in a substantive paragraph that genuinely explains something, that’s usually stronger than a link in a stray list at the bottom of the page.
Authority and trustworthiness of the referring site
Not every site has the same value. A referring website with a visible editorial team, real expertise and a subject that makes sense usually carries more weight than a thin site full of generic articles.
Look for signals such as:
- a clear focus or niche
- real content instead of filler pages
- logical editorial placement of links
- a credible reputation in the field
Anchor text and natural variation
Anchor text is the clickable text of a link. It helps search engines understand what the linked page is about.
A healthy profile usually shows variation, such as:
- brand name
- URL
- descriptive anchor
- generic anchors such as “read more”
If every backlink uses exactly the same keyword, that looks unnatural.
Placement of the link on the page
Where a link sits matters. A contextual link in the body text often means more than a link in a footer, sidebar or author bio.
That doesn’t mean those links are worthless by definition, only that you have to take the placement into account. An editorial link in running text is usually stronger than a standard sitewide link that shows up on every page.
Link attributes: nofollow, sponsored and UGC
Not every link is marked the same way. Alongside regular links, there are rel attributes that add extra context.
- Regular link: no special attribute, often a normal editorial link.
- Nofollow: indicates that the link doesn’t have to be read as a standard recommendation.
- Sponsored: shows there may be a paid or commercial relationship behind the link.
- UGC: stands for user-generated content, such as forum replies or comments.
These terms are useful, but they’re not an end in themselves. A natural backlink profile usually consists of several types of links.
Which backlinks can be harmful?
Some backlinks can be a problem, especially when they’re part of a clearly unnatural pattern. But there’s rarely any need to panic. Assess first, and only then step in.
Toxic backlinks and link spam
“Toxic backlinks” usually refers to spammy, irrelevant or manipulative links. Think of pages with no real content, link networks or sites that only seem to exist to place links.
One odd link doesn’t have to be a problem. A pattern of many irrelevant links, unnatural anchors and low quality is more of a concern.
Why buying links in bulk is risky
Buying links in bulk is short-term thinking. You’re often buying volume with no context, no relevance and no editorial reason.
You can’t credibly build a strong backlink profile with a pile of similar links in a short space of time.
Disavow: only when it’s really necessary
Disavow isn’t something you use lightly. It’s a way of telling search engines you’d rather certain links weren’t taken into account.
In practice, that’s mainly relevant if you have a clear spam problem or a history of manipulative link patterns. Unsure about a few odd links? Then going straight to disavow often isn’t the first step. Analyse first, look at the patterns, and only then act.
How do you get good backlinks?
You usually earn good backlinks by making or doing something others have a logical reason to link to. That takes more work, but it’s safer and more sustainable.
Create link-worthy content
Think of formats that are genuinely useful to people, such as:
- guides
- how-tos
- checklists
- visual explainers
- practical overviews
Not every page becomes link-worthy by itself. A thin sales pitch rarely attracts spontaneous links.
Work with guest contributions and partnerships
Guest contributions can be valuable if they’re strong on substance and appear on relevant platforms. The same goes for partnerships with suppliers, customers, trade platforms or knowledge partners.
The core idea is simple: the partnership has to make sense, rather than just being a way to get a link placed somewhere.
Use PR, brand mentions, and broken link building
Sometimes a site mentions your brand but doesn’t link to you yet. In that case you can ask whether a link can be added to the mention. The same applies to broken link building: you spot a broken link on a relevant site and suggest your page as a suitable alternative.
That only works if your content is a genuine match. Otherwise it’s still a forced request.
Think local and sector-specific: directories, associations and industry listings
For many companies, the opportunities are closer than they think. Local directories, trade associations, supplier pages and sector platforms can all make a lot of sense.
Backlinks aren’t separate from reputation, and reputation isn’t separate from AI visibility.
How do you assess your backlink profile?
You assess a backlink profile on quality, diversity and how natural it looks.
Signs of a healthy profile
Look for:
- links from several relevant domains
- variation in anchor text
- a mix of link types
- logical growth over time
- few signs of spam or irrelevance
Our own estimate from experience: if a profile looks too tidy and too perfect, that’s often not a good sign at all.
Monitoring backlinks in practice
You can track backlinks through Search Console and general SEO tools. Look beyond new links and check the patterns too:
- which pages get links
- which anchors keep coming up
- which domains link to you
- whether you see a lot of irrelevant sources
- whether important links disappear unexpectedly
Monitoring backlinks works best as part of a broader SEO check. That also includes technical SEO.
Common mistakes in link building
The biggest mistake is thinking that backlinks solve everything. They don’t.
Too much focus on numbers
More links aren’t automatically better. Ten relevant links can be worth more than a big bundle of low-quality ones.
Wrong anchors and irrelevant links
When anchors get too commercial or links come from irrelevant sites, an unnatural pattern soon emerges. That’s exactly why context matters more than volume.
Treating backlinks as a replacement for content or technical SEO
Backlinks work best when your foundation is sound. Without good content and strong technical SEO, the effect stays limited. Backlinks are no replacement for content or site quality.
Forget that and you’re building separate parts instead of a logical whole. Or to put it more concretely: a link helps, but no link will fix a bad page or a site that isn’t in good technical shape.
Frequently asked questions about backlinks
What do backlinks do?
Backlinks give search engines extra signals about a page’s relevance, authority and trustworthiness.
How can I get backlinks?
By creating content other people want to link to and by building relevant relationships, mentions and partnerships.
How many backlinks do I need?
There’s no fixed number. It depends on your subject, your competition and above all the quality of the links.
What do nofollow, sponsored and UGC mean?
They’re link attributes that give extra context about the nature of a link: editorial, paid or placed by users.
Are nofollow links worthless?
No. They can still deliver traffic, visibility and a stronger brand.
Can backlinks harm my site?
Yes, especially when there’s a clearly spammy or manipulative pattern behind them. A few odd links aren’t automatically a problem.
Conclusion: earning backlinks works better than forcing them
Backlinks matter for SEO as part of content, technical SEO and authority working together. Our view is clear: sustainable growth is more likely to come from relevant links and a strong foundation than from bulk and haste.
So start here: first your foundation, next your link-worthy content, then your outreach and monitoring. That’s the order of priority. Want a clear view of where your opportunities and risks lie? Then a sharp analysis of your current profile is the best first step.
