Link Building: How to Earn Backlinks Safely Without Risking Penalties

In short: link building is earning links from other sites to yours. The links that work are placed editorially, come from topically close and trusted sites, fit naturally into content and bring real visitors. Buying links that pass ranking signals violates Google's rules, so a safe strategy rests on valuable content, expertise and partnerships.

What is link building and why does it matter?

A backlink is a hyperlink from another site to yours. To a search engine it is a "recommendation": if relevant resources link to you, you probably deserve trust. Links help search engines discover pages and judge their authority. They don't replace quality content and technical SEO, but in competitive niches it's hard to progress without them.

There is extra value too: links from industry sites bring targeted visitors and raise brand awareness, which in turn drives the mentions AI systems use to compose answers.

Which links are considered valuable?

Judge a donor by usefulness to a person: would a real human click that link?

What does Google treat as a violation?

Google's spam policies prohibit link schemes, including:

• buying and selling links that pass ranking signals;
• large-scale "you link to me, I link to you" exchanges;
• automatically generated links;
• hidden links;
• mass links dropped in comments and profiles;
• "guest" articles with optimised anchors placed at scale.

Paid, advertising and affiliate links are acceptable when properly marked with attributes:

<a href="https://example.com/" rel="sponsored">Advertising or paid link</a>
<a href="https://example.com/" rel="ugc">Link from user-generated content</a>
<a href="https://example.com/" rel="nofollow">Link we don't vouch for</a>

Safe methods of earning links

1. Content worth linking to. Original research, statistics, calculators, templates, checklists, tools. A useful resource earns links by itself.
2. Digital PR and expert comments. Comment on industry news for media and offer data and examples to journalists.
3. Editorial guest articles. One quality article on a relevant site with real value beats ten cheap placements. No mandatory commercial anchors.
4. Partnerships. Suppliers, clients, associations and event organisers often link to partners.
5. Cases and testimonials. Clients can mention you as a provider on their own sites.
6. Directories and profiles. Industry and local directories where competitors are present. Pick quality ones, not all of them.
7. Reclaiming mentions. Find publications that mention your brand without a link and politely ask for one.
8. Broken link replacement. Find links to dead pages on relevant sites and offer your material as a replacement.

How should you handle anchors?

An anchor is the link text. A natural profile includes several types:

There's no fixed "correct" percentage. A warning sign is a large share of identical commercial anchors, especially on new links.

Buying links and marketplaces: what's the risk?

Links bought to pass ranking signals violate Google's policies, and consequences range from such links being devalued to manual actions. If you place a paid article or ad, mark it rel="sponsored" or nofollow: it then becomes a legitimate channel for traffic and awareness, though it passes no ranking signals. Mass marketplace links with uniform anchors and traffic-less donor sites usually bring no benefit.

Donor evaluation checklist

1. The site is real: it has content, updates and contacts.
2. The topic matches or is adjacent.
3. It has organic traffic and search presence.
4. Placement is in the main content, not a "partners" block.
5. Few outbound commercial links on the page.
6. No spam signs: casino, piracy, nonsensical hybrid topics.
7. The link isn't presented in a way the visitor can't see.

Toxic links and disavow

Google notes that most sites don't need the disavow tool: its systems can ignore spammy links. Use it only if you have a manual action or traces of obvious link manipulation you can't remove yourself. Don't disavow "just in case" every link that third-party tools rate as low quality.

How to measure results

• Search Console → Links: external links, linking sites, top linked pages.
• Referral traffic in GA4: whether people arrive from new links.
• Rankings and impressions of the pages being linked to.
• Organic leads (see our article on GA4 lead tracking).
• Brand mentions in search and AI answers.

Judge not the number of links, but what they delivered to the business.

A 90-day plan

1. Days 1–15. Audit the current link profile, analyse 3–5 competitors, list valuable pages to promote.
2. Days 16–45. Create one strong asset (research, tool, detailed guide). Prepare a list of relevant sites and journalists.
3. Days 46–75. Outreach, expert comments, partner and client mentions.
4. Days 76–90. Analyse results, reclaim mentions, repeat what worked.

Common mistakes

• Chasing quantity over quality.
• Identical commercial anchors.
• Buying links on marketplaces without marking them.
• Links on irrelevant and dead sites.
• No valuable page worth linking to.
• Mass placement in comments and profiles.
• Disavowing links for no reason.