Building backlinks: the honest guide

What is a backlink?

A backlink, also called an inbound link or return link, is a link from an external website pointing to your page. To search engines, such a link is a recommendation: if many credible sites point to you, Google assumes your content is valuable and trustworthy. The principle comes from Google’s PageRank algorithm and still works today like a voting system in which not every vote counts equally.

A fitting image: your website is a restaurant, backlinks are recommendations. When many people, especially those who eat in good restaurants themselves, recommend you, your reputation grows across the whole city. That is exactly how Google treats links from strong, topically relevant sites. The sum of all your backlinks is called your link profile, and that profile is the currency of off-page optimization.

Do backlinks still matter in 2026?

Short answer: yes, but differently than before. In the SEO world there are two camps. One has been shouting for years that link building is dead. The other considers backlinks one of the most important factors of all. The data sides with the second camp, with one caveat. Backlinks remain among the top ranking factors, but their weight has shifted: where links once made up more than half the algorithm, they now sit at around 13%, while content quality has become the single most important factor.

The correlation is still clear. According to Backlinko’s analysis of 11.8 million search results, the result in position 1 has on average 3.8 times as many backlinks as positions 2 to 10. At the same time, around 95% of all pages on the web have zero backlinks. So anyone who builds high-quality links at all immediately stands out from the large majority. The decisive shift: it is no longer sheer volume that counts, but trust, topical fit, and the diversity of referring domains.

What makes a high-quality backlink?

A backlink is not just a backlink. Whether a link helps your ranking, hurts it, or is irrelevant depends on a handful of factors that Google does not disclose but that have clearly emerged from years of practice. These are the factors to check before you even wish for a link:

dofollow, nofollow, sponsored, ugc: the link attributes

A technical detail many skip, but it decides the value of a link. Through a rel attribute in the HTML, a page tells Google how to treat a link. Four cases you should know:

A dofollow link is the default without any attribute. It passes authority and is the link you want in SEO. A nofollow link (rel="nofollow") has only fed weakly into rankings since 2019, but still brings traffic and belongs in every natural profile. rel="sponsored" marks paid or incentivized links, such as affiliate or cooperation links. rel="ugc" marks user-generated content like forum posts and blog comments.

What matters is the overall picture. If almost exclusively dofollow links point to your site, it looks unnatural to Google and risks a devaluation. A healthy profile mixes dofollow and nofollow, different source types, and varying anchor texts. Social media links, by the way, are almost always nofollow: good for reach and traffic, not a direct ranking lever.

How to build high-quality backlinks

There is no button for backlinks. But there is a handful of methods that actually work in the German-speaking market and are worth the effort. The common thread in all of them: you first give a reason to link instead of just asking for one. The following paths are sorted by ratio of effort to impact.

Link-worthy content and your own studies

The most sustainable method is a so-called linkable asset: content so useful or unique that others link to it voluntarily. These are comprehensive guides, infographics, calculators, checklists, or your own studies with solid numbers. Your own data especially is worth gold, because whoever cites your statistic almost automatically links to the original source. A tip from practice: regularly check whether someone picks up your figures without linking to you, and politely point out that you are the source.

Digital PR and expert contributions

Digital PR is now considered the single most effective link-building tactic: in surveys, nearly half of SEO professionals rate it the most effective method. It means showing up in editorial media and trade portals with a real story, a data point, or an expert opinion. This brings strong, topically relevant links of high authority and builds brand awareness along the way. For B2B mid-market companies specifically: approach industry media, association sites, and trade magazines with a relevant perspective instead of running mass outreach.

Guest posts

The classic: you write a well-researched expert article for a topically relevant site and receive a link in return. This still works when the piece delivers real value and appears on a serious, well-maintained site. Google has devalued mass-produced guest posts without substance in the past, so the rule is: better one excellent piece on a strong site than ten shallow ones on weak sites. Before writing, ask whether the link will be dofollow or nofollow, and vary your anchor text.

Broken-link building

With this method you search topically relevant sites for dead links, that is, references to pages that no longer exist (404). If you find one for which you have matching content or can create it, you contact the site owner and offer your content as a replacement. You help them fix an error and receive a link in return. This is especially rewarding with older guides and resource lists that are rarely maintained. Tools like Ahrefs or Semrush find such broken links efficiently.

Skyscraper method

With the skyscraper method you analyze which of your competitors’ content receives especially many backlinks. Then you create a noticeably better, more current, and more comprehensive version and contact the sites linking to the weaker original with your improved offer. Important in 2026: in an age of AI text floods, prettying things up is no longer enough. You need genuine input of your own, exclusive data, or lived expertise, otherwise you will not stand out.

Industry directories and citations

Entries in web directories, business listings, and review portals like ProvenExpert or Trustpilot are quick to make and a solid foundation, especially for local visibility. Google weights such links lightly, but they belong to a natural profile and strengthen your local presence. Choose industry-specific and regional directories, ensure a complete, well-maintained entry, and do not expect a ranking jump from them alone. As a starting point for the first links they are good, as a sole strategy too thin.

Analyze your competitors’ backlinks

Before starting any method, it pays to look at the competition. Whoever ranks ahead for your most important keywords has often built their link profile over years, and you can tap some of those sources too. With a backlink checker you see which sites link to your competitors, how many referring domains they have, and where your gaps are. Google likes clique thinking: showing up on the same strong sites as your top competitors signals belonging.

Some widely used tools for backlink analysis:

Building a natural link profile

Google evaluates not just each link individually but the overall picture. If your profile looks manually bought together, you risk a devaluation. Three points keep your profile natural.

First, speed, the link velocity. A site that gains hundreds of links out of nowhere in one week is suspicious. Build continuously and patiently instead of in bursts. Second, the mix: different source types (editorial pieces, directories, forums, mentions), a healthy ratio of dofollow to nofollow, and varying anchor texts instead of always the same keyword. Third, the distribution, the deeplink ratio. Not only your homepage should receive links, but also relevant subpages. A profile where everything points to the homepage with the same hard anchor text screams manipulation.

What you should NOT do

The fast path is almost always the expensive one. These practices might bring something short term but cost you rankings or a manual penalty in the long run. Be honest with yourself here.

Buying or renting links violates Google’s guidelines. Google increasingly detects bought links, and rented links disappear once you stop paying, which looks unnatural. Link farms and private blog networks (PBNs) exist only to distribute links and are a clear warning sign. Excessive reciprocal link exchange (you link me, I link you) is also openly listed in Google’s guidelines as a penalized pattern. And mass AI-generated guest posts without substance are increasingly recognized and rejected by editorial teams.

An honest word on the gray area: in practice, link buying continues despite the ban, and with very natural-looking placements not everyone gets caught. But that is a risk you knowingly take, not a standard we recommend. For a company that wants to be visible long term, the white-hat path is the only one with a predictable outcome. And if toxic links do point to you, you can devalue them via the Google Disavow tool.

Backlinks and AI: why authority now counts twice

Here is the point most guides overlook. Your off-domain authority in 2026 affects not only Google but also whether AI systems like ChatGPT and Perplexity cite and recommend you. An analysis of around 129,000 domains shows: the number of referring domains is the single strongest factor for whether a page is cited by ChatGPT. Pages with more than 32,000 referring domains are cited around 3.5 times more often than those with up to 200. And around 82% of AI-cited links are earned media, that is, references from third-party sites, not your own domain.

That changes the math. Link building is therefore no longer a pure SEO measure but pays directly into your visibility in AI answers. Whoever builds credible mentions and links across the whole web today is more likely to be named tomorrow in the AI pre-selections where B2B decision-makers form their shortlist. How this interplay works in detail we explain under Generative Engine Optimization.

This is exactly where we work: we build B2B websites with a foundation designed for classic rankings and AI visibility at the same time, and we accompany the authority-building that carries both.

Your first steps

The five steps above are the sensible order: first analyze, then build a link-worthy asset, secure the quick base links, run targeted outreach, and keep growing patiently. Link building is not a one-off project but an ongoing process that pays off over months, but sustainably so.

The most important principle stays: quality and relevance over quantity. A single strong, topically relevant link is worth more than a hundred arbitrary ones. Whoever internalizes that and keeps at it builds a link profile that ranks on Google and gets cited in AI answers at the same time.

Frequently asked questions