Clearswift URL Filtering

General Features

  • Categorizing 99.9% of the active web, enabled by a Global Feedback Network of hundreds of millions of users worldwide
  • More than 55 million sites categorized with 10 million new sites added and 10 million dead sites removed each year
  • Coverage representing billions of web pages from around the world
  • Over 100 categories using automated categorization technology (machine learning) that has been continually improved for over a decade
  • Additional Data Feeds (i.e., government, illegal content, terrorism, etc.)
  • Sophisticated deep learning system used for categorizing image heavy, text-poor sites
  • Experienced team to support override requests, with human support
  • Sensitive categories, such as suicide and hate, are manually curated
  • Unknown URLs returned from customers automatically processed
  • Categorization Experts performing targeted discovery supporting customer requirements
  • Daily manual review of Top Unknowns from each customer
  • Regularly maintained – URLs frequently rechecked
  • Pages analyzed in over 28 languages including: Arabic, Catalan, Chinese, Czech, Danish, Dutch, English, Estonian, Finnish, French, Greek, German, Hebrew, Hindi, Hungarian, Italian, Japanese, Korean, Lithuanian, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, Thai, Turkish, and Vietnamese

Special Features


By combining this visibility with our automated analysis and human research efforts, the MCD provides unique, timely, and actionable protection from Internet-based threats. These sites are organized into 4 different categories. The database is frequently updated and when integrated into a Web filtering solution to provide an effective protection against ever-changing Internet-based malware threats.



  • Zscaler
  • Cisco OpenDNS
  • Check Point
  • Forcepoint
  • Palo Alto Networks

See Clearswift's Secure Web Gateway in Action

Protect your organization from ever-changing internet threats with Clearswift.