API Overview

The Website Categorization API provides real-time domain classification using the IAB Content Taxonomy. Our RESTful API enables you to categorize any domain into over 800 categories with high accuracy and confidence scores. Whether you're building ad-tech solutions, content moderation tools, or sales intelligence platforms, our API delivers the data you need.

Fast Response

Average response times under 100ms for cached domains, with real-time classification for new domains.

800+ Categories

Full IAB Content Taxonomy v2 and v3 support with hierarchical category classification.

Confidence Scores

Each category includes a confidence score so you can filter based on your accuracy requirements.

Batch Processing

Process up to 1,000 domains per batch request for efficient large-scale classification.

API Endpoints

GET /v1/categorize

Single Domain Categorization

Categorize a single domain and retrieve IAB taxonomy categories with confidence scores.

POST /v1/batch

Batch Categorization

Submit multiple domains in a single request for efficient bulk processing.

GET /v1/enrich

Domain Enrichment

Get comprehensive domain data including categories, company info, technologies, and more.

Example Request

                    
# Categorize a domain

curl -X GET "https://api.websitecategorizationapi.com/v1/categorize?domain=techcrunch.com" \

  -H "Authorization: Bearer YOUR_API_KEY"

Example Response

                    
{

  "domain": "techcrunch.com",

  "categories": [

    {

      "id": "IAB19",

      "name": "Technology & Computing",

      "tier": 1,

      "confidence": 0.97

    },

    {

      "id": "IAB12",

      "name": "News",

      "tier": 1,

      "confidence": 0.89

    }

  ],

  "meta": {

    "request_id": "req_xyz789",

    "processing_time_ms": 42

  }

}

API Documentation