A Comprehensive Category Taxonomy
Our 59 content categories provide the granularity needed to build precise web filtering policies. Rather than lumping all websites into a handful of broad buckets, our taxonomy distinguishes between closely related but policy-distinct categories. For example, "Dating" and "Adult Content" are separate categories because many organizations block adult content while permitting dating sites, and vice versa.
Categories are organized into seven top-level groups: Security, Adult, Lifestyle, Productivity, Business, Communication, and Content/Infrastructure. Each domain can belong to multiple categories simultaneously, with independent classification details for each. A news website that also serves as a social media platform might carry both "News/Media" and "Social Networking" labels.
The taxonomy is updated quarterly to reflect evolving web content patterns. New categories are introduced when an emerging content type reaches sufficient prevalence to warrant distinct policy treatment, such as the addition of "Cryptocurrency" and "AI/Machine Learning" in recent updates. Classification metadata is also valuable for evaluating technology stack age as a business maturity signal when analyzing categorized domains. The categorization API provides programmatic access to the full taxonomy, and bulk domain categorization applies it to entire domain lists at once.