What is Link Building in SEO?
The deliberate work of getting other websites to link to yours. You have probably already been told it is either essential or dead, so this page defines it, explains where that reputation came from and then says plainly which businesses need it.
What Link Building Is
Link building is the deliberate work of getting other websites to link to yours. Backlinks are the things. Link building is the activity of pursuing them, which covers everything from claiming a supplier listing to persuading a national publication to reference your research.
There is a problem with the name. Noticing it explains a great deal about the subject. Building implies making something, in the way a builder makes a wall. Nobody can make a backlink. The link has to be created on somebody else's website, by somebody who does not work for you, on their judgement.
What the work actually consists of, then, is making that decision more likely. Producing something worth referencing. Being visible to the people who might reference it. Asking, where asking is appropriate. Claiming what you already qualify for. None of that is building and all of it is influence at one remove.
Some practitioners prefer link earning for exactly this reason. They have a point, though the older phrase is what everybody searches for. Hold the distinction rather than the vocabulary. The things themselves are covered in what backlinks are. The full series sits in the complete guide to backlink building.
Where The Reputation Came From
The discipline has a history. It is not a flattering one. Understanding it is worth ten minutes, because it explains both the suspicion the phrase attracts and why so much poor advice is still circulating.
Early search engines needed something outside a page to judge it by. Treating links as citations worked remarkably well. It worked because publishing was expensive, so giving a link cost something real. Then publishing became free, the cost of the signal collapsed and the signal became cheap to manufacture.
What followed was roughly fifteen years of industrialisation. Mass directory submission. Articles rewritten by software and distributed at volume. Networks of sites built solely to sell placements. Comment spam. Site wide footer links traded between businesses that had never met. For a period it worked, which is the part people forget: this was not fringe behaviour but standard practice, sold by respectable agencies to sensible clients.
Google spent those years responding. It introduced an attribute letting publishers decline to vouch for links. It published guidance naming link schemes as violations. It built systems to discount links it did not trust and issued manual penalties to sites that had gone furthest. The manufactured version of the signal kept getting cheaper while its value kept being written down.
Two things survive from that era. The phrase carries a smell it has never quite lost. And a vast quantity of advice written during it is still online, unlabelled and undated, being read by businesses who have no way of knowing which decade it belongs to.
What It Means Now
The term now covers two activities separated by a line that matters more than anything else in this cluster: arranging links against earning them.
Arranging means the business or its supplier took steps to make a link appear. Paying for a placement. Joining an arrangement. Producing content whose purpose is to hold a link. The link exists because somebody made it exist.
Earning means somebody else decided. They referenced you because your page was useful, because you were quoted, because you are a member of something, because you supply something they list. You may have prompted the decision by asking or by being visible. You did not make it.
Why does one phrase cover both? Largely because of search itself. Businesses looking for this service type link building, so suppliers have to use those words to be found, whatever their actual method. An agency doing careful editorial work and a company selling placements by the dozen therefore appear under the same heading, describing themselves with the same vocabulary.
Which puts the burden on the buyer, unfortunately. The word tells you nothing about the method, so the method has to be established by asking. The categories are set out in how many types of link building there are.
Is It Still Relevant
Yes for some businesses, barely at all for others. Which of those you are is predictable rather than mysterious.
Links remain one of the ways a search engine judges whether a page deserves to be shown for a competitive term. Nothing has replaced that. Anybody telling you links no longer matter is describing a world in which the top results for contested commercial subjects are not overwhelmingly held by sites with substantial authority, which is not the world.
Anybody telling you links are the answer for every business is making the opposite error. It is also the more expensive one.
The variable that decides it is a single question. Can the competition be beaten on relevance alone?
In many situations it can. A local trade competing against four firms who have never touched their listings. A specialist supplier in a field where nobody publishes anything useful. A subject where the current top results are thin because no competitor has bothered. In all of those, being genuinely better and more relevant wins. Links are close to irrelevant.
In other situations it cannot. Where every result on the first page belongs to an established site with a decade of accumulated references, relevance gets you to the edge of contention and no further. That is where link building stops being optional.
So the answer is neither yes nor no. It is that this depends on your competitive situation. That situation is observable rather than a matter of opinion.
Where It Sits Against Everything Else
Links are one input into search visibility. The others include whether your pages actually answer what somebody asked, whether the site can be crawled and indexed properly, whether it works on a phone, whether anybody can enquire once they arrive, plus proximity and the business profile for local businesses.
The useful way to think about that list is as a system with a bottleneck. Adding capacity anywhere except the bottleneck changes nothing at all. If your pages do not answer the question, links point at pages that will not rank. If the site cannot convert, links deliver visitors who leave. If a technical fault caps what can be indexed, links point at pages nothing can see.
What makes this genuinely difficult is that link building is the most visible input and the easiest to sell. It has an obvious deliverable, it can be reported in numbers and it feels like progress. Fixing a page that does not answer its question produces no line item.
So businesses buy the input they can see rather than the one that is binding. We see this regularly. The links are frequently perfectly good. They were simply pointed at the wrong half of the problem.
Working out which situation you are in is the subject of when backlinks are not the right SEO investment, which is the page we would rather a prospect read before commissioning anything.
Who Actually Needs It
Specific rather than vague, because the vague version is what lets everybody conclude they are in the first group.
Businesses that do need it. Anybody competing on national commercial terms where the entire first page belongs to established sites. Established categories such as finance, insurance, legal services and software, where competitors have been publishing and being referenced for years. Ecommerce in contested product areas. Publishers, whose whole model depends on being cited. And any business whose subject is well covered by strong competitors, where relevance alone will not close the gap.
Businesses that do not. Most local businesses, for reasons set out in our guide to backlinks for local against national SEO: local results lean on proximity, the business profile, reviews and record consistency, none of which a link affects. Any business whose site is not yet sound, because links amplify what exists. New sites with nothing worth referencing yet. Businesses in genuinely uncontested subjects, where the money buys nothing relevance would not have won more cheaply. And anybody without the margin to fund a programme over quarters rather than weeks.
The pattern across both lists is worth naming. Link building is what you reach for when everything else is already right and the competition is doing everything else right too. It is a late stage tool. Most businesses that buy it are not yet at that stage.
Common Misunderstandings
Four, each of which leads a business somewhere expensive.
That it is inherently against the rules. It is not. Google's guidance addresses links a site arranged for itself in order to rank. Claiming a supplier listing, joining a trade body, publishing research that gets cited and contributing to a publication in your field are all ordinary business activities that produce links. The violation is a category within link building rather than the whole of it.
That it is dead. Usually said by somebody describing the industrialised version, which is genuinely much less effective than it was. Meanwhile the first page for any contested commercial term remains dominated by sites with substantial accumulated references, which is not what a dead ranking factor looks like.
That it can be bought safely at volume. The two words are in tension. Volume requires arrangement. Arrangement produces recognisable patterns. Recognisable patterns are the thing detection works on. This is set out in how Google detects unnatural backlink patterns.
That a number of links is a target. There is no correct number, because the units are not equivalent and the target is a competitive gap rather than an absolute. A business given a number will hit it, using whatever sources make hitting it possible, which is how the number becomes the problem. What to do instead sits in how to get backlinks.
A late stage tool,
used at the right stage.
We establish whether links are your bottleneck before proposing any. Frequently we conclude they are not. Where they are, the work is earning rather than arranging. No purchased placements, no networks, no price per link.
Included every month:
One fixed monthly rate. No setup fee. No price per link.
Twenty four guides.
One subject.
This page defines the discipline. The rest of the series covers the methods, the categories, what makes a link valuable, how patterns are recognised and when none of it is the right spend at all.
