Why defining your own publisher categorisation is one of the most valuable things you can do in affiliate marketing

Introduction

Why defining your own publisher categorisation is one of the most valuable things you can do in affiliate marketing is often overlooked, yet it underpins almost every meaningful optimisation you can make within your programme.

Most affiliate networks provide default publisher categories. However, these are typically:

• Self-selected
• Inconsistent across publishers
• Too broad to deliver meaningful insight

As a result, they rarely reflect how publishers actually contribute to performance. Without a clear, structured categorisation framework, it becomes difficult to:

• Understand performance at a meaningful level
• Identify genuine growth opportunities
• Make confident, data-driven decisions

Instead, programmes often rely on surface-level reporting and assumptions, which can lead to inefficient investment and missed potential.

Defining your own publisher categorisation brings clarity, control, and direction. It allows you to better understand the role each partner plays, align your strategy accordingly, and create a more structured approach to scaling your affiliate marketing programme.

What is publisher categorisation in affiliate marketing?

Publisher categorisation is the process of grouping your affiliate partners based on:

• How they drive traffic
• Where they sit in the customer journey
• The value they deliver

Rather than relying on network labels, you define categories that reflect how you manage and optimise your programme.

The problem with network categorisation

Most networks rely on publishers to categorise themselves. This leads to three core issues:

1. Inconsistency

Publishers may categorise themselves differently, even if they operate in the same way.

2. Lack of granularity

Broad labels like “content” or “loyalty” don’t reflect meaningful differences in behaviour.

3. Misalignment with your goals

Network categories are not designed around your:

• Margin
• Customer acquisition strategy
• Growth priorities

For further context on industry standardisation challenges, see IAB UK.

What a strong categorisation framework looks like

A strong framework reflects how publishers actually contribute to your programme. Here’s a simple example of how you might structure your publisher categories:

A strong framework reflects how publishers actually contribute to your programme, based on recognised publisher types in affiliate marketing.

The benefits of defining your own publisher categorisation

Simpler, more insightful reporting

Instead of analysing hundreds of individual publishers, you can:

• View performance at category level
• Identify trends quickly
• Spot growth areas

A clearer understanding of value

Different publisher types contribute in different ways.

For example:

• Cashback → volume
• Content → influence
• CUGs → new customers

Categorisation allows you to measure:

• ROI
• Conversion rate
• New vs existing customers

Encourages programme diversification

Without categorisation, it’s easy to fall into:

“Let’s just add more publishers” But growth comes from:

• Filling gaps
• Balancing your mix
• Reducing reliance on key partners

This becomes even more powerful when combined with a structured affiliate programme audit, helping you clearly identify gaps and prioritise where to focus next.

More digestible stakeholder reporting

Stakeholders don’t want:

• Long publisher lists
• Raw transaction data

They want:

• Clear summaries
• Strategic insights

Example:

How to build your categorisation framework

Step 1: Group publishers by behaviour

Focus on:

• Traffic source
• User intent
• Position in the journey

Step 2: Align categories to strategy

Your categories should reflect:

• Commercial priorities
• Margin considerations
• Growth opportunities

Step 3: Add depth where needed

You can break down categories further, for example:

• CUGs → employee benefits vs memberships
• Content → reviews vs editorial

Step 4: Apply consistently

Consistency is key. Ensure:

• Every publisher is categorised
• Categories are applied in the same way
• Updates are maintained over time

How categorisation connects to scaling your programme

Categorisation isn’t just about reporting. It directly impacts:

• Recruitment strategy
• Activation approach, particularly when looking to increase the number of sale-active publishers
• Commission structure
• Investment decisions

It also plays a key role in how you structure affiliate commissions, ensuring different publisher types are rewarded based on the value they deliver.

If you’re looking at the bigger picture of how structure, activation and investment come together, you can read our guide on how to scale an affiliate marketing programme.

Common mistakes to avoid

• Relying solely on network categories
• Creating too many overly complex categories
• Not updating categorisation over time
• Treating categorisation as a one-off task

EngageMore’s verdict

Publisher categorisation is one of the most important foundations of a high-performing affiliate programme. Without it, reporting lacks clarity, decision-making becomes inconsistent, and growth opportunities are harder to identify.

By defining your own categorisation framework, you create a clearer view of how different publisher types contribute to performance. This enables more informed decisions around recruitment, activation, commission, and investment.

Ultimately, categorisation transforms affiliate marketing from a reactive channel into a structured, strategic growth engine and sets the foundation for scaling your programme effectively.

If you’re looking to take this further, explore our guides on auditing your programme, increasing sale-active publishers, and structuring commissions to drive performance.

With EngageMore Growth, we help brands scale their affiliate marketing programmes with a more strategic, performance-driven approach. Whether you’re looking to unlock new revenue, improve efficiency, or take your programme to the next level, our expert team is here to support you across strategy, activation and optimisation. Explore our Growth services or let us help you build an affiliate programme that delivers results.