Web Filtering Database — 100 Million Domains Categorized for Filtering

DNS-Layer Filtering

DNS resolvers are the first checkpoint for every internet connection, making them the ideal enforcement point for content filtering at scale. Our database integrates directly into recursive resolvers and DNS security gateways, enabling category-based blocking at line rate without adding latency.

• Service providers can intercept DNS queries and check the requested domain against the local category database in microseconds.
• Blocked categories return an NXDOMAIN or redirect to a block page, preventing the connection before any content is downloaded.
• DNS-layer filtering protects every device on the network without requiring endpoint agents or proxy configurations.
• The 100-million-domain database provides comprehensive coverage that catches newly registered domains through monthly refreshes.
• Resolver operators can implement tiered filtering profiles for different network segments or subscriber groups.
• Integration is straightforward with standard RPZ (Response Policy Zone) feeds generated from our category data.
• This approach scales from small office networks to carrier-grade deployments serving millions of subscribers.

School & CIPA Filtering

Educational institutions in the United States must comply with the Children's Internet Protection Act (CIPA) to receive E-Rate funding, requiring technology that blocks access to harmful online content. Our database provides the classification backbone that makes CIPA compliance straightforward to implement and audit.

• School IT administrators deploy the database on-premise to filter traffic across campus networks, Chromebook fleets, and one-to-one device programs.
• The 59-category taxonomy maps directly to CIPA requirements including visual obscenity, child exploitation, and harmful-to-minors content categories.
• Teachers and staff can operate under different filtering profiles than students, allowing access to educational resources that may be restricted for younger users.
• The offline database ensures filtering continues to function during internet outages, protecting students even when cloud services are unreachable.
• Audit logs generated from category lookups provide the documentation schools need for E-Rate compliance reviews.
• Library systems integrate the same database to provide age-appropriate filtering on public-access terminals.
• District-wide deployments scale from a single school to thousands of sites using centralized database distribution.

• education web filtering across 100 million classified domains
• K-12 content filtering for school districts
• CIPA compliant filtering to maintain E-Rate eligibility

Secure Web Gateways

Secure Web Gateways and Cloud Access Security Brokers rely on comprehensive URL categorization to enforce acceptable use policies, prevent data loss, and block threats across enterprise networks. Our database integrates seamlessly into SWG architectures as a high-performance local lookup layer for corporate web content filtering.

• SWG vendors embed the database to provide instant category verdicts without cloud roundtrips, reducing latency for end users.
• Policy engines combine our 59 content categories with DLP rules, application controls, and threat intelligence for layered security decisions.
• The database covers both well-known and long-tail domains, providing classification for sites that real-time ML engines may not yet have evaluated.
• Enterprises deploying on-premise SWG appliances benefit from the air-gapped capability of our offline database.
• Cloud-based SWG providers use our database as a first-pass filter before routing unknown domains to more intensive classification pipelines.
• Category-based bandwidth controls allow network teams to throttle streaming and social media during business hours.
• The consistent category taxonomy across all deployment models ensures uniform policy enforcement regardless of user location.

Threat Intelligence Platforms

Security Operations Centers process thousands of indicators of compromise daily, and enriching these IOCs with content category metadata dramatically accelerates triage and investigation workflows. Our database provides instant domain classification that helps analysts distinguish between legitimate business domains and suspicious infrastructure.

• SOC analysts can automatically tag incoming alerts with category labels, enabling priority-based triage where domains categorized as technology or business receive different handling than those in gambling or adult categories.
• Threat intelligence platforms enrich domain IOCs with our 59-category taxonomy before distributing them to downstream security tools.
• The local database enables high-throughput enrichment of bulk indicator feeds without API rate limits or per-query costs.
• Historical analysis of category distributions across threat campaigns reveals patterns in adversary infrastructure preferences.
• Automated playbooks use category data to make blocking decisions, escalating only when indicators fall into unexpected categories.
• The database helps identify domain generation algorithm outputs by flagging newly categorized domains that lack established category histories.
• Integration with SOAR platforms enables category-aware orchestration workflows that reduce mean time to respond.

Browser Extensions

Browser extension developers can ship a preloaded category database that enables safe-browsing, content labeling, and parental control features directly within the browser, without requiring a backend server for every page visit. This architecture delivers instant classification with zero latency.

• The compressed database loads into the extension's local storage, enabling real-time category lookups as users navigate the web.
• Extensions can display a color-coded safety indicator in the toolbar showing the current site's category and risk level.
• Parents install the extension on their children's browsers to enforce category-based restrictions managed through a simple settings panel.
• Privacy-focused extensions use the local database to classify sites without sending any browsing data to external servers.
• Content labeling extensions show category badges on search results and social media links before the user clicks.
• The database enables browser-level blocking that works across all tabs and windows without the complexity of network-level filtering.
• Development teams benefit from our well-documented category taxonomy that maps cleanly to extension permission models.

AdTech Brand Safety

Programmatic advertising platforms must ensure that brand advertisements do not appear alongside inappropriate, harmful, or controversial content that could damage advertiser reputation and trust. Our database provides the URL classification layer that powers brand safety decisioning in real-time bidding environments.

• Demand-side platforms use our categories to evaluate publisher inventory before placing bids, blocking placements on sites categorized as adult, violence, hate speech, or gambling.
• Supply-side platforms pre-classify their publisher inventory using our database, providing category metadata in bid requests to attract premium advertisers.
• Brand safety vendors integrate our 59-category taxonomy into their verification tools to provide post-campaign reports on ad adjacency.
• The local database enables sub-millisecond classification that meets the latency requirements of real-time bidding auction mechanics.
• Advertisers define brand-safe category lists that vary by campaign, allowing a gaming brand to permit gaming sites while a family brand blocks them.
• Historical category data enables trend analysis of publisher inventory changes that may affect brand safety scores.
• The comprehensive coverage of our 100-million-domain database catches long-tail publisher sites that smaller classification databases miss.

Regulatory Compliance

Organizations across healthcare, finance, government, and education face regulatory mandates that require demonstrable content filtering and web access controls. Our database provides the auditable classification infrastructure that compliance programs depend on to satisfy auditors and regulators.

• HIPAA-covered entities deploy the database to prevent access to categories that could introduce malware or facilitate data exfiltration on networks handling protected health information.
• PCI-DSS compliant environments use category-based filtering to restrict cardholder data environment workstations to business-essential web categories only.
• Financial institutions block categories associated with fraud, gambling, and cryptocurrency on trading floor and back-office networks.
• Government agencies implement the database to meet FISMA and FedRAMP security control requirements for web content filtering.
• The deterministic nature of our offline database provides auditors with confidence that classification decisions are consistent and reproducible.
• Category-based access logs generate the documentation trail that compliance frameworks require for periodic reviews and assessments.
• The database supports multi-jurisdictional compliance by enabling different filtering profiles for operations in different regulatory environments.

Healthcare Networks

Healthcare organizations manage networks where clinical workstations, medical devices, and administrative systems coexist, requiring content filtering that protects patient data while allowing access to medical resources. Our database provides the category granularity needed to distinguish clinical from non-clinical web traffic.

• Hospital IT teams deploy the database to block malicious, phishing, and malware categories on networks connected to electronic health record systems.
• Clinical workstations receive filtering profiles that allow access to medical reference, pharmaceutical, and healthcare categories while blocking entertainment and social media.
• Guest Wi-Fi networks in hospitals use the database to provide family-safe browsing for patients and visitors in waiting areas.
• Medical device networks benefit from strict category-based allowlisting that limits internet connectivity to essential update and telemetry destinations.
• The offline database prevents patient data exposure by eliminating the need to send DNS queries to external classification services.
• Compliance with HIPAA security rules is supported by category-based access controls that document what content types are accessible on PHI-handling systems.
• Telemedicine platforms integrate the database to ensure that remote consultation links connect to verified healthcare category domains.

SaaS Security Products

Cloud-based security platforms and safe-browsing services need a reliable domain classification database as the foundation of their filtering capabilities, and building one from scratch requires years of investment. Our OEM licensing model lets SaaS vendors ship enterprise-grade categorization on day one.

• Security SaaS startups integrate our database to immediately offer 100-million-domain coverage without building a classification pipeline from scratch.
• Cloud-based web filtering services use our database as the primary lookup layer, falling back to real-time ML classification only for uncategorized domains.
• Safe-browsing API providers license our database to serve category data through their own branded endpoints and SDKs.
• The OEM licensing model includes redistribution rights that allow SaaS vendors to serve the data to their end customers without per-query fees.
• White-label delivery options let vendors present the category data under their own brand without exposing the underlying data source.
• The standardized 59-category taxonomy integrates cleanly with SaaS platform permission models and policy configuration interfaces.
• Monthly database updates are delivered through secure channels that SaaS vendors can integrate into their own update distribution infrastructure.

Air-Gapped & Offline Deployments

Defense organizations, critical infrastructure operators, and sensitive government networks operate in air-gapped environments where no outbound internet connectivity is permitted, yet content filtering is still required for internal web applications and controlled internet access points.

• Our offline database is purpose-built for these zero-trust, zero-connectivity scenarios.
• Military and intelligence networks deploy the database on isolated classification servers that operate without any internet connection whatsoever.
• Critical infrastructure operators in energy, utilities, and transportation use the database to filter web access on operational technology networks that must remain air-gapped.
• Classified government networks implement the database to enforce content policies on workstations that handle sensitive national security information.
• The database is delivered through secure physical media or approved cross-domain transfer mechanisms that meet classified network handling requirements.
• Updates are distributed on a controlled schedule through existing secure update channels without requiring the air-gapped network to connect to external systems.
• The deterministic, file-based nature of our database means there are no external dependencies, API calls, or network connections required for operation.
• Organizations with strict supply chain security requirements benefit from the auditable, self-contained nature of a file-based classification database.