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IAB Content Taxonomy

Summary definition​

The IAB Content Taxonomy is a standardized classification system for categorizing digital content, primarily used in advertising and brand safety.

Detailed definition​

The IAB Content Taxonomy is maintained by the Interactive Advertising Bureau (IAB) and provides a shared vocabulary for describing what content is about across the digital advertising ecosystem. It is widely used by publishers, advertisers, ad platforms, and programmatic systems to align content classification for targeting, reporting, and brand safety.

The taxonomy is hierarchical and currently consists of approximately 700 content categories organized into three levels (from broad to more specific). Each topic has a unique, stable identifier (ID), allowing reliable exchange of metadata between systems, even across languages.

The IAB Content Taxonomy is regularly updated to reflect changes in media consumption, advertising requirements, and regulatory expectations. The current version is 3.1.

Top-level categories (Level 1)​

These are some of the 37 top-level topics:

  • Automotive
  • Business and Finance
  • Careers
  • Education
  • Entertainment
  • Family and Relationships
  • Food & Drink
  • Healthy Living
  • Hobbies & Interests
  • Home & Garden
  • Law
  • Personal Finance
  • Pets
  • Politics
  • Science
  • Sports
  • Style & Fashion
  • Technology & Computing
  • Travel

Examples of deeper categories​

  • Pets → Dogs
  • Sports → Soccer
  • Technology & Computing → Artificial Intelligence
  • Healthy Living → Nutrition

Here you can find the full list of the Version 3.1. categories.

Sensitive Topics & Brand Safety​

One of the top-level categories is Sensitive Topics, which includes subcategories from the Brand Safety Floor & Suitability Framework.

IAB Content Taxonomy vs. IPTC Media Topics​

Although both the IAB Content Taxonomy and IPTC Media Topics are used to classify content into hierarchical categories, they were created for different purposes.

IPTC Media Topics was designed specifically for editorial and journalistic workflows. It reflects how newsrooms think about coverage and offers deeper, more granular hierarchies (around 1,200 topics across five levels). IPTC topics are often used for editorial analytics, archive organization, content discovery, and content exchange between news organizations.

IAB Content Taxonomy, on the other hand, was created for the advertising ecosystem. It focuses on consistency, interoperability, and suitability for brand safety and ad targeting. Its structure is intentionally more compact and pragmatic, making it easier to integrate with ad platforms, DSPs, and reporting tools.

In practice:

  • IPTC Media Topics are typically used to describe editorial meaning and journalistic context.
  • IAB Content Taxonomy is typically used to describe advertising context, suitability, and monetization.

Many publishers use both taxonomies in parallel, mapping editorial classification (IPTC) to advertising classification (IAB) to ensure that content works equally well for newsroom operations and revenue generation.

Geneea context​

Geneea supports automatic classification using both IAB Content Taxonomy and IPTC Media Topics. This allows publishers to maintain a clear separation between editorial semantics and advertising semantics, while ensuring that both are derived from the same underlying understanding of content meaning.

Geneea’s semantic analysis ensures that IAB categories are assigned based on context rather than keywords, making them suitable for brand safety, suitability frameworks, and advertising analytics.