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The Interactive Advertising Bureau (IAB) defines a Content Taxonomy to provide publishers with a consistent and easy way to organize their website content, and enable advertisers to target standard content categories. Verity returns all IAB hierarchy tiers for both versions 1.0, 2.0 and 23.0 of the taxonomy:
IAB V1 – 2 tiers - 372 categories
IAB V2 – 4 tiers - 698 categories
For example, Verity analysis of an article on “The Rise of Alternative Venture Capital” identifies IAB v1.0 categories in 2 tiers, and IAB v2.0 and v3.0 categories in 4 tiers.
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