Website Categorization API review
A developer-focused API for real-time URL classification and technology stack detection.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Website Categorization API is a developer-focused service for classifying URLs and domains, detecting web technology stacks, and returning categorization, enrichment, and confidence data. It is designed for AdTech, cybersecurity, content filtering, brand safety, market research, and data-enrichment teams that need machine-readable results rather than a standalone visual application. The API supports IAB v2 and v3 taxonomy classification, web-filtering categorization, commerce taxonomies, JSON responses, downloadable domain databases, and integrations with Python, JavaScript/Node.js, PHP, Ruby, Java, C#, and Go.
Pricing is structured around monthly paid plans. Pro costs $99 per month and includes AI-based real-time categorization, web technologies detection, bulk import, and batch processing; the published plan information also specifies 10,000 API credits per month. Pro Plus costs $249 per month and adds audience segmentation and COPPA compliance checks. Advanced costs $499 per month and adds custom categories alongside bulk import and batch processing. Advanced Plus costs $999 per month, while Business costs $1,997 per month; both list custom categories, bulk import, and batch processing with the core categorization and technology detection features. Enterprise 1M Plan costs $3,999 per month and includes the same listed processing capabilities. Enterprise includes 1M+ API credits per month, a dedicated account manager, an enterprise SLA, and custom SLAs.
Its strongest fit is for teams building classification into applications, enrichment pipelines, filtering systems, or research workflows. Real-time processing, confidence data, bulk and batch operations, and downloadable databases give it a useful breadth across live API and higher-volume data use cases. The narrowness is equally clear: this is an API and dataset product, not a broad technographic application with a general-purpose interface. Teams that need developer-controlled categorization and technology detection should consider it; organizations seeking a wider, non-API-first workflow may prefer an alternative.
Website Categorization API pros and cons
- Where it wins
- Real-time URL and domain categorization with confidence data
- Detects web technologies and supports IAB v2 and v3 taxonomies
- Bulk processing, downloadable databases, and REST API access
- Where it doesn't
- No perpetual free plan
- API-only delivery requires development resources
- Broader technographic workflows may need additional tools
Website Categorization API fact sheet, pricing and score →
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