Link Building
Link building: strategies for acquiring quality backlinks
Backlinks remain one of Google's three main ranking factors. But the era of mass link schemes is over — only a link profile with real value works today. We cover modern link building strategies, how to evaluate link quality, and how to stay out of trouble with manual actions.
Link building is the process of acquiring backlinks from other websites to yours. Google treats each quality link as a "vote" in favour of your site — the more authoritative sources that point to you, the higher the algorithms' trust in your content.
What is link building and why does it matter
Links are one of Google's three fundamental ranking signals alongside content relevance and site usability. They transfer "link equity" (PageRank) — a measure of page authority.
Modern link building is about quality and context, not quantity. A single link from a topical industry publication can outperform a thousand links from link farms. Google has learned to recognise artificial link schemes and responds with manual actions or algorithmic demotion.
Top-3 factor
Links are one of Google's three fundamental ranking signals
No links
Of pages on the internet have zero external links pointing to them (Ahrefs data)
Advantage
Ranking advantage for pages with a strong link profile over competitors
No traffic
Of content gets no organic traffic without external links pointing to it
Why links matter for rankings
PageRank is the algorithm Google has used since its founding. Over 25 years it has grown in complexity, but the core principle remains: pages that authoritative sources link to rank higher. This works because editorial links are hard to fake at scale.
Links serve several purposes simultaneously: they transfer domain authority, speed up indexation of new pages, and drive referral traffic. Google evaluates not just whether a link exists, but its context: anchor text, topical proximity of the donor to the recipient, and the link's position on the page.
Types of links: what counts and what doesn't
Not all links pass link equity. Google and other search engines use rel attributes to differentiate editorial links from paid placements and user-generated content.
| Attribute | Passes equity? | When to use |
|---|---|---|
| rel="dofollow" (default) | Yes | Organic editorial links |
| rel="nofollow" | No (hint, no guarantee) | Comment links, UGC |
| rel="sponsored" | No | Paid placements, affiliate links |
| rel="ugc" | No | Forums, wikis, user content |
| rel="noindex" | N/A | Controls indexation, not links |
Dofollow links pass authority and are the goal of most link building strategies. Nofollow links don't pass direct equity but can drive referral traffic and contribute to a natural-looking profile. A healthy link profile contains both types.
What makes a link quality
Link quality is determined by several parameters. Understanding them lets you make the right decisions when selecting donors and evaluating competitors' link profiles.
Domain authority
Domain Rating (Ahrefs) or Domain Authority (Moz) — aggregated strength of a domain's link profile. A link from DR 80+ has fundamentally different weight than one from DR 10.
Topical relevance
A link from a site in the same niche passes more authority. An SEO blog linking to another SEO resource is stronger than a link from a general news portal.
Position on page
A link in the main body copy is stronger than one in a sidebar or footer. Editorial links in the context of a paragraph are the most valuable.
Anchor text
Link text conveys context. Exact keyword match is a strong signal, but over-optimised anchors raise red flags with the algorithm.
Donor traffic
Sites with real organic traffic carry more weight. Links from dead sites with no traffic are nearly worthless.
IP range diversity
Links from different domains are more valuable than 100 links from subdomains of the same host. Donor diversification is a sign of a natural profile.
Modern link building strategies
Effective strategies in 2024–2026 share one trait: they create real value for the donor's audience. No automation, no schemes — only content that people want to cite.
Digital PR: stories that journalists cite
Creating research, statistical reports, and unique data — then promoting them through press releases and journalist pitches. One strong piece with original statistics can earn dozens of links from leading publications.
- Research data unavailable publicly — run surveys, analyse industry metrics
- Package results into a readable report with infographics and key takeaways
- Build a list of journalists who regularly write on your topic
- Pitch the piece with a personal email — explain why it's relevant to their audience
- Create a source page with an easy embed quote and link to the original
Skyscraper: replace outdated content
Brian Dean's method: find top-ranking competitor pages, create a significantly more comprehensive version, and offer sites that linked to the original to update their link. Works only if your version genuinely surpasses the original.
Guest posts: expert content on other platforms
Writing expert articles for authoritative industry publications with an author link back to your site. The key condition: the platform must genuinely be read by your audience. Guest posts purely for links on low-traffic sites waste time and risk penalties.
Broken link building: replacing dead links
Find pages with broken external links, create replacement content, and ask the webmaster to update the link. Tools: Ahrefs Broken Backlinks, Check My Links (Chrome extension). Conversion is low but the approach scales.
Resource pages and 'best tools' roundups
Many sites maintain curated lists of the best tools, services, or articles on a topic. If you've built something genuinely useful, you can approach curators with a suggestion to add your resource.
Recovering unlinked brand mentions
Regularly search for unlinked brand mentions (Google Alerts, Ahrefs Alerts). Authors are often happy to add a link on a simple request — this is the "easiest" link building because the content is already written and the interest already exists.
How to evaluate your link profile
Link profile analysis is a mandatory part of any SEO audit. It surfaces toxic links, reveals gaps compared to competitors, and sets priorities for future link building.
| Metric | What it means | Healthy signal |
|---|---|---|
| Referring Domains | Number of unique linking domains | 5–10% growth per quarter |
| Domain Rating / DA | Aggregated profile strength | Benchmark against competitors |
| Dofollow/Nofollow ratio | Share of links passing equity | 70–85% dofollow is normal |
| Anchor text distribution | Anchor diversity | Brand + URL + natural > 70% |
| Toxic score | Signs of spammy links | < 5% toxic donors |
| Link velocity | Rate of link acquisition | Gradual growth, no sharp spikes |
Toxic links — from link aggregators, PBN networks, automated blasts — can harm rankings. They can be rejected via Google Disavow Tool, but this must be done carefully: incorrectly disavowing good links will hurt your positions.
Common link building mistakes
Most mistakes come from trying to simulate a natural link profile rather than building one. Google gets better every year at recognising unnatural patterns.
- Buying links without the sponsored attribute — policy violation, risk of manual action
- Over-optimising anchors — too many exact keyword matches
- Links from topically irrelevant sites — low value, possible negative signal
- Sharp spikes in link velocity — looks unnatural to the algorithm
- Ignoring internal linking — PageRank needs proper distribution within the site too
- Links pointing only to the homepage — distribute equity across key landing pages and articles
- Using PBN networks — short-term lift with high risk of domain-wide demotion
- No monitoring — without knowing your profile you won't notice toxic links accumulating