We provide both an API and a downloadable offline database for web filtering. Classify any URL into 59 content categories in real time through our REST API, or license an on-premise database covering up to 100 million domains for firewalls, DNS filters, parental controls and OEM redistribution.
Every team arrives here with a different problem. Pick the scenario that matches yours and go straight to a working solution — or tell us what you're building and we'll point the way.
License our downloadable database of up to 100 million domains classified into 59 web filtering categories. It runs entirely on-premise inside your firewall, DNS filter, or parental-control product — no data ever leaves your network — with regular update deliveries and OEM redistribution licensing available.
Our 59-category taxonomy covers adult content, gambling, drugs, weapons, violence and other unsafe categories — the same data used for parental controls and CIPA / COPPA compliance. Available as a real-time API or an offline database.
Enforce age-appropriate browsing policies on campus, on take-home devices and on library terminals with our 59-category classification of 100 million domains — including everything needed for CIPA compliance and E-Rate eligibility.
Network security vendors, VPN providers and DNS filtering services use the same 59 categories via our real-time API or offline database to enforce acceptable-use policies at scale.
Our platform at websitecategorizationapi.com returns IAB Content Taxonomy categories — the industry standard for AdTech — in real time, making it a drop-in fit for contextual targeting, brand safety and pre-bid filtering pipelines.
We run bulk categorization jobs of any size — one-time or recurring — in the web filtering taxonomy or IAB. Tell us your list size and requirements and we'll come back with a quote and turnaround time.
Our continuously maintained AI Tools Blocklist covers 16,000+ AI-tool domains in 18 categories, delivered in every firewall format (CSV, JSON, EDL, PAC, hosts, DNS RPZ) with daily updates.
Our platform detects 3,000+ web technologies — ad networks, analytics tools, CMS platforms, payment providers and more — via API for internal applications or as part of the infrastructure serving your clients, plus ready-made lists of all domains running a given technology.
Describe your ICP in plain language — for example, "all AI companies run by a solo founder, operating as a SaaS business, less than two years old" — and our platform extracts exactly those domains from a 102 million domain database.
Our platform scores any URL or your whole placement list 0–100 for MFA risk — combining ad-stack forensics, page-structure analysis and AI content-authenticity judgment, with every underlying signal returned so exclusions hold up in front of auditors.
One API call on our platform returns a 0–100 children's-privacy risk score built from child-directed content detection, personal data collection, tracking identifiers, missing privacy controls and content appropriateness — per URL or as a sweep of your whole inventory.
Our platform infers who would read a page from the content itself: demographics, purchase intent, life stage and B2B firmographics, plus 1,667+ interest personas — page-level, cookieless and privacy-safe, per URL or precomputed across the 102M-domain database.
The Phishing Domains Database on our platform delivers a daily-updated, DNS-verified list of active phishing domains in CSV, downloadable via API — it drops straight into your SIEM, firewall or DNS filter alongside the web filtering categories.
Market research teams, VC and PE firms use custom extracts from the 102 million domain database on our platform — filtered by category, country, language or technology stack — for market sizing and TAM analysis. Describe your segment and we'll build the list.
Custom taxonomies, on-premise deployments, unusual volumes — we answer every message, usually within one business day.
Pick the delivery model that matches your deployment. Call our REST API for real-time lookups, or license the full offline dataset for on-premise firewalls, DNS resolvers, parental-control appliances and OEM redistribution — all classified across the same 59 web filtering categories.
Real-time HTTPS endpoint that returns content categories and country data in under 50 ms. Plans from 1,000 daily lookups up to unlimited volume with bulk domain classification endpoints and webhook notifications.
See API pricingDownloadable database from 1M to 120M domains. Starter tiers from $999; enterprise and OEM licensing quoted per deployment. Annual license with scheduled refreshes, CSV & Parquet.
View database packagesEmbed the Web Filtering Database inside your own product with redistribution rights, white-label delivery and volume pricing. Contact us for a quote.
Contact us for quoteA comprehensive web filtering database that categorizes URLs and domains in real-time with machine learning precision across 59 distinct content categories.
Query any domain or URL and receive instant categorization across 59 content categories. Our database covers up to 100 million domains with daily updates and AI-powered classification of new sites.
Learn moreURLs not in our database are classified in real-time using deep learning models trained on billions of web pages, delivering sub-50ms categorization for any website worldwide.
Learn moreIdentify unsafe content, cryptomining, and other malicious domains with our continuously updated content classification layer integrated into every API response.
Learn moreOur classification engine combines multiple ML models trained on billions of web pages to categorize domains with exceptional accuracy. The system analyzes page content, link structure, DNS metadata, WHOIS records, and visual elements.
Classification Methods: Deep learning NLP for text analysis, computer vision for visual content detection, graph neural networks for link analysis, and ensemble models for final category assignment.
Explore ML EngineOur taxonomy covers every corner of the web with 59 precisely defined categories spanning web-based risks, adult content, productivity, lifestyle, and business topics. Each category has clear definitions and consistent classification criteria.
Categories include: Restricted / Suspicious, Adult, Gambling, Social Networking, Streaming Media, News/Media, Shopping, Education/Reference, Government & Legal, Health & Medicine, and dozens more. Domains can belong to multiple categories when content spans topics.
View All CategoriesBuilt for high-throughput environments, our API handles millions of lookups per second with sub-50ms latency. Ideal for integration into DNS resolvers, firewalls, and proxy servers where every millisecond counts.
Ideal for: DNS-based web filters, secure web gateways, next-gen firewalls, browser extensions, parental control apps, and any application requiring instant domain intelligence.
Real-Time FeaturesFrom schools to enterprises, ISPs to cybersecurity vendors, organizations trust our database to enforce safe browsing policies and protect users from harmful content.
CIPA-compliant web filtering for schools and libraries. Block harmful content while enabling educational resources with age-appropriate policies.
Protect corporate networks from unsafe content, and data leakage with enterprise web filtering that categorizes web traffic and enforces acceptable use policies.
Build family-safe browsing experiences with granular category blocking. Let parents choose what content is appropriate for their children.
Enable ISPs to offer clean-pipe content filtering services to subscribers with carrier-grade classification at millions of queries per second.
Enhance firewalls, SWGs, and endpoint protection with URL content classification and content categorization for policy enforcement.
Offer multi-tenant web filtering as a service. Configure per-client policies with our API and manage thousands of networks from a single platform.
Our web filtering database helps organizations meet content filtering mandates from CIPA, GDPR, IWF, and industry-specific regulations worldwide.
Regulations like CIPA (Children's Internet Protection Act) require schools and libraries to filter harmful content. IWF (Internet Watch Foundation) mandates blocking of illegal content in the UK. Enterprise regulations such as HIPAA, PCI-DSS, and SOX require web access controls to protect sensitive environments.
Our API provides the categorization backbone that makes compliance straightforward. Configure policies per regulation, generate audit logs, and demonstrate compliance with detailed reporting on blocked and allowed content categories.
Compliance GuideIntegrate our domain categorization API into your product in minutes. Send a URL, get back categories and category scores with detailed metadata.
Submit any URL or domain to our API endpoint via a simple GET or POST request. Supports single lookups and batch requests of up to 1,000 domains.
We first check our offline database of up to 100 million pre-classified domains. Cache hits return in under 10ms with full category data and classification details.
Unknown domains are classified in real-time using our ML pipeline that analyzes content, DNS, WHOIS, and link graph data for accurate categorization.
Receive the domain's categories, classification details, category level, popularity rank, and metadata in a clean JSON response. Ready for policy enforcement.
Built by developers, for developers. Our RESTful API returns clean JSON with consistent response formats. Integration typically takes less than 30 minutes with our SDKs for Python, JavaScript, Go, Java, and C#.
Flexible Deployment: Use our cloud API for instant scalability, or license the full database for on-premises deployment. Our architecture supports synchronous single lookups and asynchronous batch processing.
Enterprise Features: API key management, usage analytics, webhook notifications for category changes, custom category mappings, and dedicated support channels for high-volume customers.
API DocumentationTry our domain classification tool to see web filtering categories and country data in action. Explore our API and database plans for production use.