URL Categorization Knowledge Base
Practical guides on how website category data works, how to test it and where it pays off.
Advertising and targeting
How category data feeds ad targeting, brand suitability and cleaner supply paths.
Contextual Targeting vs Behavioral Targeting
How each method works, how they compare on privacy, reach and cost, and when to combine them.
Cookieless Contextual Targeting
Where third-party cookies stand in 2026 and how to target and measure with domain signals instead.
Brand Safety Categories Explained
Safety versus suitability, risk tiers and how URL categories map to sensitive topics.
ads.txt and sellers.json Explained
The fields in ads.txt, app-ads.txt and sellers.json, how they connect and the errors to watch for.
Supply Path Optimization With Domain Data
Score routes by the sites they reach, drop duplicate and parked inventory, and build allow lists.
Website Personas Explained
What audience persona labels on a domain mean and how they differ from content categories.
Taxonomies and data quality
How the category systems fit together and how to judge a categorization dataset before you buy.
Dual-Taxonomy Categorization
Why every domain carries both IAB content categories and web filtering categories in one record.
IAB Taxonomy Mapping Guide
A step by step method for mapping your own category list to IAB v2 and v3, with checks.
Category Data Quality Checklist
A buyer's checklist covering coverage, accuracy tests, freshness, multi-label ranking and licensing.
Coverage and Freshness
How much of the active web the database covers and how often the records are refreshed.
URL Categorization API vs Database
Latency, cost, privacy and engineering effort compared, with a guide to picking the right delivery.
Domain intelligence and enrichment
The extra fields that sit next to categories and how teams add them to their own records.
Rich Domain Intelligence
An overview of the signals beyond categories: company data, technologies, popularity, personas and geography.
Company and Firmographic Data
How domains link to company profiles with industry, size and location for B2B work.
Web Technology Stack Tracking
Tracking the CMS, shop, analytics and ad technologies a website runs, and why it matters.
Domain Enrichment for CRM
Clean account domains, then add category, industry and country fields that map to your picklists.
Website Language and Country Data
How a country is attributed to a domain, why domain endings mislead and how to use it.
Security, AI and research
Category data outside advertising: security triage, training data selection, market sizing and AI tools in schools.
Domain Categorization for Cybersecurity
Enrich SOC alerts, speed up phishing triage and handle newly registered domains in logs.
Parked Domain Detection
What parked and for-sale domains are, the risks they carry and the signals that give them away.
Filtering Web Crawls for AI Training Data
Using URL categories to remove adult, spam and parked domains and balance a training corpus.
Category Data for Market Research
Count sites per category and country to size niches and follow change over time.
K-12 AI Tools Dataset
A school verdict, its reason and 13 risk factors for 11,853 AI tool domains, with MDM app lists and a policy kit.