Getting a website noticed in search results is rarely about doing one thing perfectly. You can publish useful content, fix technical issues, improve page speed, and target the right keywords and your competitors can still have an edge.
Often, that edge comes down to their backlink profile.
Link building is the process of earning links from other websites that point back to pages on your own site. These links, known as backlinks, connect websites to one another and give search engines additional signals about how your content fits within its subject area.
But there's a meaningful difference between building links and building good links. Collecting hundreds of backlinks is easy if that's all you're optimizing for - plenty of low-quality methods exist to do exactly that. It won't necessarily help your SEO, though. A handful of relevant, well-placed links from sites your audience actually trusts tends to outperform a pile of unrelated ones, and that's the mindset behind a strategy worth running.
Link Building in Simple Terms
Think about how recommendations work outside of SEO entirely.
If someone whose opinion you trust tells you to read a particular guide, that recommendation carries weight because it comes from someone with a genuine reason to make it. A backlink works in roughly the same way online.
When another website links to your article, service page, or research, its readers get a path to discover you, and search engines get another data point about how your site connects to the rest of the web.
Say you run a digital marketing website and publish a detailed guide on keyword research. A separate marketing site, writing about SEO research, references your guide because it's genuinely useful to their readers. That single link does three things at once: it sends interested people to your site, exposes your brand to a relevant audience, and becomes part of your broader backlink profile.
That's the real goal - not a number, but useful connections from relevant sources.
What Counts as a Backlink
A backlink is simply a link from one website to another. If Site A links to a page on Site B, Site B has received a backlink.
That link might point to a blog post, a homepage, a product page, or a research report. Anyone who clicks it moves from the referring site to yours - traffic known as referral traffic - and that traffic can matter on its own, separate from any effect on rankings.
If the referring site's audience overlaps with your target customers, that referral traffic can be more valuable than the ranking boost people usually associate with link building. At the same time, no backlink guarantees a ranking improvement by itself. Rankings depend on content quality, technical performance, relevance, competition, and overall site usability - link building supports those factors, it doesn't replace them.
Why Relevance Beats Volume
One of the most common mistakes in link building is assuming more backlinks automatically means better results. It doesn't work that way, and Google has been explicit about this: its Search Central guidance on link spam specifically calls out link schemes built to manipulate rankings rather than serve readers, and treats them as a violation worth penalizing.
Relevance is what separates a useful link from a risky one. A fitness site publishing an article on strength training makes sense referencing a health, nutrition, or sports-medicine source - and vice versa. A link from a site with no topical connection is much harder to justify to anyone, including Google.
A simple gut check I use when reviewing an opportunity: would this link make sense if search engines didn't exist? If a site would reasonably reference your page purely to help its own readers, it's worth pursuing. If the only reason for the link is to move a ranking, it deserves more scrutiny, not less.
What Makes a Backlink Good
There's no single metric - Domain Rating, Domain Authority, referring domain count - that turns a backlink into a good one by itself. Metrics are useful for narrowing down research, but they shouldn't make the decision for you. A few things worth checking before pursuing a link:
- Relevance - does the linking page have a logical connection to your business or content?
- Content quality - is the site publishing original material for a real audience, or does it exist mainly to host outbound links?
- Natural placement - does the link sit inside relevant, editorial content, or is it dropped into an unrelated page or a crowded directory?
- Site-wide health - beyond this one page, does the site's overall backlink profile look genuine, or is it full of low-quality, spammy links?
A site with an impressive Domain Rating but a thin, link-farm-style backlink profile is a weaker opportunity than a smaller, niche publication with a real, engaged readership - even though the metrics might suggest otherwise.
How This Plays Out in Practice
A working SEO link building strategy starts with research, not outreach. Before contacting anyone, it helps to know which of your pages matter most, what your competitors are earning links for, and which of your own resources are genuinely worth referencing.
From there, a few approaches tend to do most of the work:
- Manual outreach to relevant, carefully chosen publishers
- Competitor backlink research, to see where similar sites are earning their links
- Broken link building - finding dead links on relevant pages and offering your resource as the replacement
- Digital PR and original research that other sites want to cite
- Guest contributions written for a publication's actual audience, not just for the link
Across every one of these, the question that matters is “why would this specific site link to this specific page?” - not “how do I get a link from this site?” Sending the same templated pitch to two hundred websites is not a substitute for understanding why any one of them would care.
In the audits I run for clients, the sites that struggle most with link building usually aren't short on outreach effort - they're short on pages actually worth linking to. Fixing that almost always moves the needle faster than another round of cold emails.
Backlinks as a Traffic Source, Not Just a Ranking Signal
A backlink can send visitors directly to your site, and this benefit gets overlooked constantly.
If an industry publication references your original research and links to the full report, readers who want more detail will click through - and those readers already have some interest in your subject before they arrive. The strongest link opportunities do two things simultaneously: they give the publisher's readers a genuinely useful reference, and they give you a route to an audience that already cares about what you do.
There's No Universal Backlink Target
How many backlinks is “enough” depends entirely on your situation. A new site in a competitive market needs to build relationships and earn its first relevant mentions. An established site may already have solid link equity but need more visibility for a newer service page or guide.
Before setting any targets, it's worth mapping out your industry and main competitors, your current backlink profile, your strongest and weakest pages, and the kind of sites your actual audience already trusts. That's why a proper backlink audit usually comes before any outreach - it tells you where the gaps actually are, instead of guessing at a monthly link quota.
Link Building Doesn't Fix Weak SEO
This gets missed more often than it should. If a page has thin content, a confusing structure, or technical problems, backlinks pointed at it won't fix any of that - link building is one piece of a larger system, not a substitute for the rest of it.
A page needs to answer a real question well, be crawlable and technically sound, and give visitors a good experience once they land on it. When those pieces are already solid, a relevant backlink has something worth pointing to - it sends people to a page that actually holds up once they arrive, rather than one that bounces them straight back out.
What to Check Before Saying Yes to a Link
Before accepting a backlink opportunity, it's worth slowing down to look at the site itself: read a few of its pages, check whether its topics genuinely fit your audience, and consider whether it seems to exist for readers or mainly to host outbound links.
Then look specifically at the page your link would sit on. Would it genuinely improve the article for someone reading it? Is there a natural reason for the connection? If those answers aren't clearly yes, the opportunity probably isn't worth the outreach time - regardless of what the site's SEO score says.
Build the Most Useful Profile, Not the Biggest One
Good link building isn't a race to accumulate backlinks. It's built around relevance - connecting content that's genuinely useful with the people and sites most likely to care about it.
If you're planning a link building campaign, start with the pages that deserve attention, study what's earning links for your competitors, and build something worth referencing before you start reaching out. If that process feels like more than your team has time for, manual link building support built around research rather than volume is usually the faster path to results that hold up.
When strong content, solid technical SEO, good user experience, and relevant backlinks work together, link building stops being a numbers game and becomes what it should have been from the start: one part of a sustainable SEO strategy.