Dangerous SEO Practices Explained · Link Risk

What Is Link Farming in SEO?

Not all links help, some actively hurt. Here is what link farming is, how link schemes, paid links and toxic backlinks put your site at risk, whether affiliate links matter, and how to stay clean.

Updated: July 2026
Written by: Andrew Odgers, Managing Director
Reading time: 8 minutes
The short answer

Link farming is using groups of sites created mainly to link to each other or a target site, to inflate rankings through volume rather than merit. It is a type of link scheme, the broad category of link-based manipulation. Paid link building that passes credit without disclosure is risky, and toxic backlinks are spammy or low-quality links that can harm your profile. Affiliate links do not inherently hurt SEO when marked correctly as nofollow or sponsored. Build links safely by earning them through useful content and legitimate outreach, not buying or farming, though no method can guarantee rankings.

Volume is not merit

What link farming is, and link schemes

Link farming is the use of groups of sites created mainly to link to each other or to a target site, in an attempt to inflate rankings through sheer link volume rather than genuine merit. It is a form of link scheme that breaches the guidelines; because search engines treat farmed links as manipulation, relying on them puts a site at real risk of penalties. A link scheme is any arrangement designed to manipulate rankings through links, including link farms, excessive link exchanges, and networks built purely to pass authority. It is the broad category that link farming sits within; because link schemes are explicitly against the guidelines, taking part in one, knowingly or not, exposes a site to action. We describe these here so you can recognise and avoid them, not so you can use them.

LR 01

Schemes and farms

Manipulation by volume.

LR 02

Paid and toxic

Risky, harmful links.

LR 03

Earn instead

Clean, natural links.

Paid links, toxic links, affiliates and safe building

Paid and toxic links, affiliate links, and building safely

Paid link building that passes ranking credit without proper disclosure breaches the guidelines and is risky, while toxic backlinks are low-quality or spammy links, from link farms, irrelevant sites or manipulative sources, that can harm your profile. Both undermine a healthy link profile; because they signal manipulation or low quality, avoiding paid schemes and monitoring for toxic links protects your site. Affiliate links do not inherently hurt SEO when they are used honestly and marked correctly, typically as nofollow or sponsored, so they do not pass ranking credit. Problems arise only when they are hidden, excessive or used to manipulate; because correctly tagged affiliate links are a normal, accepted practice, they are fine as long as they follow the disclosure rules. You build links safely by earning them through genuinely useful content, relationships and legitimate outreach, rather than buying, exchanging or farming them, so your profile grows naturally. Quality and relevance matter far more than volume; because earned links are both safe and durable, ethical link building is the approach we use, and it is covered in our backlinks service, though no method can guarantee rankings.

SEO done properly, from £350 a month

Links you earn,
not links you rent.

Bought and farmed links are a fast track to trouble. We build your authority the safe way, through genuinely useful content and legitimate outreach, and keep an eye on your profile so toxic links do not quietly drag you down.

Everything included in your plan:

Google Maps optimisation Full website management Local SEO campaign AI optimisation (GEO) Facebook, Instagram and LinkedIn Quarterly audits Monthly reporting
£350 per month

One clear retainer. No setup fee.

Frequently asked

Link farming and link risk

What is link farming in SEO?
Link farming is the use of groups of sites created mainly to link to each other or to a target site, in an attempt to inflate rankings through sheer link volume rather than genuine merit. It is a form of link scheme that breaches the guidelines. Because search engines treat farmed links as manipulation, relying on them puts a site at real risk of penalties.
What is a link scheme?
A link scheme is any arrangement designed to manipulate rankings through links, including link farms, excessive link exchanges, and networks built purely to pass authority. It is the broad category that link farming sits within. Because link schemes are explicitly against the guidelines, taking part in one, knowingly or not, exposes a site to action.
Is paid link building risky and what are toxic backlinks?
Paid link building that passes ranking credit without proper disclosure breaches the guidelines and is risky, while toxic backlinks are low-quality or spammy links, from link farms, irrelevant sites or manipulative sources, that can harm your profile. Both undermine a healthy link profile. Because they signal manipulation or low quality, avoiding paid schemes and monitoring for toxic links protects your site.
Do affiliate links hurt SEO?
Affiliate links do not inherently hurt SEO when they are used honestly and marked correctly, typically as nofollow or sponsored, so they do not pass ranking credit. Problems arise only when they are hidden, excessive or used to manipulate. Because correctly tagged affiliate links are a normal, accepted practice, they are fine as long as they follow the disclosure rules.
How do you build links safely?
You build links safely by earning them through genuinely useful content, relationships and legitimate outreach, rather than buying, exchanging or farming them, so your profile grows naturally. Quality and relevance matter far more than volume. Because earned links are both safe and durable, ethical link building is the approach we use, and it is covered in our backlinks service, though no method can guarantee rankings.