Backlink Building: What Works, What Wastes Time

A backlink builder is any systematic process for earning or acquiring links from external websites back to your own. Done well, it’s one of the most durable investments in organic search you can make. Done poorly, it’s a time sink that produces links Google ignores or, worse, penalises you for having.

The mechanics are straightforward: other websites link to yours, Google treats those links as votes of confidence, and your pages rank higher as a result. The practice, however, is considerably more complicated than that sentence suggests.

I spent several years running a performance marketing agency where SEO was one of four core service lines. We managed link building programmes across clients in financial services, retail, travel, and professional services simultaneously. The single biggest lesson from that period was this: most link building fails not because the tactics are wrong, but because the strategy behind them is absent. Teams chase links. They should be building assets that attract them.

Backlink building sits within a broader SEO system that includes technical foundations, content strategy, and search positioning. If you want to understand how all of those pieces connect, the Complete SEO Strategy hub on The Marketing Juice covers the full picture.

Why Backlinks Still Matter in 2025

There is a recurring narrative in SEO circles that links are becoming less important. Every few years someone publishes a piece suggesting Google is moving away from PageRank-style signals toward pure content quality or user behaviour metrics. It’s been happening for over a decade. Links keep mattering.

The reason is structural. Links are one of the few signals Google can observe that exists outside the page itself. On-page content can be optimised, manipulated, or generated at scale. Links from independent third-party sites are harder to fake at volume without triggering detection. They represent, at least in aggregate, a real-world signal of credibility and relevance.

That doesn’t mean all links are equal. A link from a national newspaper, a government resource page, or a respected industry publication carries genuine weight. A link from a directory that exists purely to sell links carries almost none. Understanding the difference between link types is the foundation of any sensible building programme.

When I was judging at the Effie Awards, one thing that struck me about the most effective marketing programmes was how much of their success came from earned credibility, not paid exposure. Backlinks are the SEO equivalent of that. They’re a proxy for whether the rest of the world considers you worth referencing.

The Difference Between Earning Links and Buying Them

Google’s guidelines are unambiguous on paid links: exchanging money or goods for links that pass PageRank is a violation. The practice is widespread, the enforcement is inconsistent, and the risk calculation is one every SEO team makes privately. I’m not going to pretend the grey market doesn’t exist. But I will say that in twenty years of working across agencies and client-side teams, I’ve seen more link schemes blow up than succeed long-term.

The more commercially sensible approach is to invest in assets and activities that make links a natural byproduct. This is slower. It requires patience and a longer planning horizon. It also compounds in a way that paid links never do, because the content or tool or dataset that earns links keeps earning them without ongoing spend.

The distinction matters for budget conversations too. When I was growing an agency from around twenty people to over a hundred, one of the hardest things was convincing clients to fund content that wouldn’t produce measurable returns for six to twelve months. Link building on earned foundations requires that same tolerance for deferred value. Most clients say they have it. Fewer actually do when Q3 rolls around and the board wants to know what SEO spend has produced.

Seven Backlink Building Tactics That Hold Up Under Scrutiny

These are not theoretical. They’re approaches I’ve seen work consistently across different industries and business models.

1. Digital PR and original research

Journalists and editors link to primary sources. If you produce original data, whether from a survey, proprietary dataset, or analysis of your own platform, you give them something to cite. This is the highest-leverage link building tactic available to most mid-size businesses because the same piece of research can generate links from dozens of publications simultaneously.

The research doesn’t need to be academic. It needs to be interesting and credible. A financial services client we worked with ran a quarterly survey of small business owners about their cash flow concerns. It was picked up by trade press repeatedly and generated more authoritative links in eighteen months than three years of outreach-based link building had produced before it.

2. Broken link building

Find pages on authoritative sites that link to content which no longer exists, then offer your own relevant content as a replacement. This works because you’re solving a problem for the site owner rather than asking them to do you a favour. Response rates are meaningfully higher than cold outreach, and the links you earn tend to be from sites that are actively maintained and editorially selective.

Tools like Ahrefs and SEMrush make the prospecting manageable. SEMrush’s breakdown of backlink acquisition methods covers the mechanics of this approach in detail if you want the tactical specifics.

3. Resource page link building

Many websites maintain curated resource pages, lists of useful tools, guides, or references for their audience. If you have genuinely useful content that fits a resource page’s remit, a targeted pitch has a reasonable success rate. The key qualifier is “genuinely useful.” Pitching thin content at resource page editors is a waste of everyone’s time.

4. Government and institutional links

Links from .gov and .edu domains carry significant authority. They’re also achievable through legitimate means. Local councils link to local businesses. Universities link to employers, placement partners, and alumni organisations. Government agencies link to industry bodies and compliance resources. The process for earning government backlinks is more methodical than most link building, but the payoff in domain authority is disproportionate.

This is particularly underused by B2B companies. If you offer services to the public sector, or if your business operates in a regulated industry, there are almost certainly government resource pages where your content belongs.

5. Guest contribution to established publications

Guest posting has a mixed reputation because it was abused heavily during the early 2010s. The principle remains sound when applied selectively. Writing substantive, original pieces for publications your target audience actually reads produces links with genuine editorial value. The test is simple: if the publication removed your link tomorrow, would the article still be worth having written? If yes, you’re in the right territory.

6. Building linkable tools and calculators

Free tools attract links passively over time. A mortgage calculator, a carbon footprint estimator, a salary benchmarking tool. These get referenced in articles, bookmarked, and shared without any outreach effort on your part. The upfront investment is higher, but the ongoing return is significant. I’ve seen single tools generate hundreds of referring domains over a two-year period without any active promotion after the initial launch.

7. Reclaiming unlinked brand mentions

People mention your brand without linking to you more often than you’d expect. Setting up monitoring for brand mentions and following up with a polite request to add a link converts at a higher rate than cold outreach because there’s already an established relationship. The site owner has already decided you’re worth mentioning. Asking them to add a link is a small additional ask.

Anchor Text: The Detail Most Programmes Get Wrong

Anchor text is the visible, clickable text in a hyperlink. It’s also one of the most mismanaged elements in link building programmes, particularly those run by people who learned SEO before the Penguin algorithm update in 2012.

The temptation is to use exact-match keywords in every anchor text you control. If you’re trying to rank for “commercial property solicitors London,” you want every link to use that phrase. The problem is that this pattern looks unnatural to Google because it doesn’t reflect how links occur organically. Real editorial links use varied anchor text: brand names, partial phrases, generic terms like “this article” or “here,” and descriptive sentences.

Using identical anchor text across all your backlinks is one of the clearest signals of a manipulative link scheme. A healthy backlink profile has a distribution: branded anchors, naked URLs, generic anchors, and a minority of keyword-rich anchors. Aim for that distribution deliberately rather than letting it happen by accident.

This is one of those areas where fixing the measurement approach fixes the strategy. When I’ve audited link building programmes that were underperforming, anchor text over-optimisation has been a contributing factor more often than any other single issue. It’s also one of the easiest things to correct once you’re tracking it properly.

How to Audit Your Existing Backlink Profile

Before building new links, understand what you have. A backlink audit tells you three things: which links are helping, which are neutral, and which might be actively harming your rankings.

Pull your full backlink profile from at least two tools. Ahrefs and SEMrush index different portions of the web and you’ll get a more complete picture using both. Look for patterns in the sites linking to you: are they topically relevant? Are they editorially selective? Do they have real traffic, or are they link farms that exist purely to sell links?

Flag anything that looks like it came from a bulk link purchase, a private blog network, or a content farm. These links rarely help and occasionally hurt. If you’ve inherited an SEO programme from a previous agency or team, there’s a reasonable chance some of this exists in your profile. The Ahrefs 2025 backlinks and mentions webinar covers current best practice for evaluating link quality in detail.

Google’s Disavow tool exists for situations where you have clear evidence of harmful links you can’t get removed. Use it conservatively. It’s not a general-purpose cleanup tool and over-disavowing can remove links that were helping you.

Measuring Backlink Building Performance Without Fooling Yourself

One of the persistent problems with link building measurement is that the metrics most commonly reported, total links, domain authority, referring domains, are activity metrics rather than outcome metrics. They tell you what you’ve accumulated, not what it’s doing for the business.

The outcome you’re trying to move is organic search visibility and the traffic and revenue that flows from it. Link building is an input to that outcome, not the outcome itself. Reporting on link counts without connecting them to ranking movements and traffic trends is the kind of measurement theatre I’ve had to call out in agency reviews more times than I’d like to remember.

A more honest measurement framework tracks: referring domain growth over time, the authority profile of new links acquired (not just the count), ranking movement for target pages after significant link acquisition, and organic traffic to those pages over a rolling twelve-month period. That last one matters because SEO is a slow game and short-window measurement produces misleading conclusions.

I’ve seen clients declare link building “not working” after three months and redirect budget to paid search. Sometimes that’s the right call. More often it’s a measurement horizon problem. Organic search compounds. The returns in month eighteen look nothing like the returns in month three, and if you’re only looking at month three you’ll make the wrong decision every time.

Scaling a Backlink Building Programme Without Losing Quality

The natural tension in link building at scale is between volume and quality. Outreach-based link building is labour-intensive. Automating or outsourcing it tends to produce lower-quality links. The economics push programmes toward shortcuts that eventually cause problems.

The most scalable approach I’ve seen is to invest heavily in a small number of genuinely high-value linkable assets, then build a systematic outreach process around each one. One well-researched industry report, promoted properly to a targeted list of relevant publications, will outperform a hundred pieces of average content pitched to anyone who’ll listen.

When we were scaling the agency’s own SEO offering, we made a deliberate decision to narrow the tactics we offered clients rather than promising everything. Fewer tactics, executed with more rigour, produced better results than broad programmes executed thinly. That principle applies to in-house teams too. It’s better to do three link building tactics well than seven poorly.

For businesses with limited internal resource, the priority order is roughly: fix technical SEO first, build foundational content second, then invest in links. Links to a technically broken site or thin content are largely wasted. The sequence matters as much as the tactics.

Backlink Building for Different Business Types

The tactics that work vary by business model, and programmes that ignore this tend to underperform.

Local businesses have a distinct opportunity with local citations, chamber of commerce listings, and regional press coverage. The competition for local links is lower than for national terms, and a relatively modest programme can produce meaningful ranking improvements. The focus should be on local relevance as much as domain authority.

E-commerce businesses benefit disproportionately from product-focused editorial coverage and comparison content. Getting your products featured in “best of” articles on relevant publications is one of the highest-return link building activities available to retailers. It also drives direct referral traffic, which makes the ROI case easier to make internally.

B2B companies with long sales cycles often underinvest in link building because the connection between a link from an industry publication and a closed deal is hard to draw directly. The argument for investing anyway is that search visibility builds brand familiarity over time, and familiarity shortens sales cycles. I’ve made this case to CFOs. It’s a harder sell than “this keyword drove this revenue,” but it’s the honest one.

SaaS businesses have a natural advantage in building linkable tools, since the product itself is often the best link magnet. Free tiers, freemium tools, and publicly accessible calculators or templates all attract links organically. The challenge is attribution: links earned by a free tool may not map cleanly to paid conversions, but they contribute to domain authority that benefits all pages.

Backlink building is one component of a complete organic search strategy. If you’re building links in isolation from your broader content and technical work, you’re leaving performance on the table. The Complete SEO Strategy hub covers how these elements work together across the full programme.

What to Avoid: The Backlink Tactics That Still Get People Burned

Private blog networks remain the most common source of manual penalties I’ve seen in audits. A PBN is a network of sites created specifically to link to a target site, with no genuine editorial purpose. Google has been detecting and penalising these for over a decade. The fact that people still use them reflects either optimism about their own ability to evade detection or a short-term mindset that prioritises quick ranking gains over sustainable performance.

Link exchanges, where two sites agree to link to each other, sit in a grey area. Occasional reciprocal links between genuinely relevant sites are normal and not a problem. Systematic link exchange programmes are a different matter and carry real risk.

Buying links from link brokers is the highest-risk tactic available. The sites selling links at scale are known to Google, either through algorithmic detection or manual review. Buying links from them is borrowing authority you don’t own, and the debt comes due eventually.

Spun content submitted to article directories was a tactic that worked briefly around 2008 and has been worthless since. If anyone is still proposing this in a link building proposal, that’s a signal about the quality of the rest of their thinking.

About the Author

Keith Lacy is a marketing strategist and former agency CEO with 20+ years of experience across agency leadership, performance marketing, and commercial strategy. He writes The Marketing Juice to cut through the noise and share what works.

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