# Web Filtering Database

> webfilteringdatabase.com provides a web filtering database of over 100 million domains, classified into a 59-category web content filtering taxonomy (58 topical categories plus an Other catch-all) for DNS filtering, secure web gateways, parental controls, and network security products. Each domain also carries IAB Content Taxonomy 3.0 classifications (703 categories with official IAB Tech Lab IDs). Available as an offline CSV database (tiers from 5M to 120M domains) for download and OEM licensing, and as a real-time domain categorization API.

Quick facts:
- Filtering taxonomy: 59 categories including security-operational ones (Malware/Phishing/Suspicious, VPN/Proxy/Anonymizers, Parked/For-Sale Domains, URL Shorteners) that advertising taxonomies lack.
- Database pricing: 5M domains $2,499 (annual refresh $499/yr, or one-time snapshot); 20M and 40M+ tiers priced as enterprise (contact sales); custom annual contracts range $10,000-$250,000.
- API plans: PRO $99/mo, PRO PLUS $249/mo, ADVANCED $499/mo, ADVANCED PLUS $999/mo.
- The full category lists and the IAB crosswalk cost nothing — fetch them as JSON or CSV from /taxonomy.php.
- Delivery: CSV download with scheduled refreshes; OEM licensing available for embedding in security products.

## Free taxonomy downloads

- [Taxonomy reference page](https://webfilteringdatabase.com/taxonomy.php): Every filtering category in one table — description, sample domains, and nearest IAB 3.0 category side by side
- [Filtering taxonomy (JSON)](https://webfilteringdatabase.com/data/web-filtering-taxonomy.json): The 59 categories with policy-oriented descriptions and sample domains
- [Filtering taxonomy (CSV)](https://webfilteringdatabase.com/data/web-filtering-taxonomy.csv): The same table as CSV
- [IAB Content Taxonomy 3.0 (JSON)](https://webfilteringdatabase.com/data/iab-content-taxonomy-v3.json): All 703 official entries, IAB Tech Lab IDs and four-tier hierarchy included
- [IAB Content Taxonomy 3.0 (CSV)](https://webfilteringdatabase.com/data/iab-content-taxonomy-v3.csv): CSV edition of the IAB list
- [Filtering-to-IAB crosswalk (JSON)](https://webfilteringdatabase.com/data/web-filtering-to-iab-mapping.json): Which IAB 3.0 path each filtering category corresponds to
- [Filtering-to-IAB crosswalk (CSV)](https://webfilteringdatabase.com/data/web-filtering-to-iab-mapping.csv): The crosswalk as CSV
- [Category browser](https://webfilteringdatabase.com/categories-web-filtering.php): Browsable taxonomy with per-category domain counts

## Products

- [Web filtering database](https://webfilteringdatabase.com/web-filtering-database.php): Offline database of 100M+ classified domains; tiers from 5M to 120M; download and OEM licensing
- [Pricing](https://webfilteringdatabase.com/pricing.php): Database tiers and API plans
- [Domain categorization API](https://webfilteringdatabase.com/api-docs.php): Real-time classification API reference
- [Domain checker](https://webfilteringdatabase.com/check-domain.php): Verify the classification of any single domain

## Company

- [Contact](https://webfilteringdatabase.com/contact.php): Sales and support; email info@webfilteringdatabase.com