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    Compliance Monitoring

    ISP Blocking
    Compliance Platform

    Know exactly which sites are blocked, which aren't, and why: monitored from points of presence across ISPs, mobile operators, and VPN providers worldwide.

    Why It Matters

    BlockWatch gives rights holders and legal teams a reliable, independent source of truth about how ISPs implement blocking restrictions. It ensures that blocking restrictions are not only in place, but remain effective, accurate, and consistent across all networks and jurisdictions. With clear evidence and continuous oversight, legal teams can streamline compliance processes, strengthen enforcement strategies, and maintain confidence in ISP cooperation.

    Key Capabilities

    Continuous, independent monitoring of ISP compliance with blocking orders.

    Authoritative Block Checking

    Receive a definitive blocked or not-blocked verdict for every monitored site and network, backed by our proprietary detection ruleset.

    Global ISP & Network Monitoring

    Monitor blocking from points of presence across ISPs, mobile operators, and VPN providers in any market. Multi-region monitoring from a single dashboard.

    Identify the Strength of Blocking

    Detect and classify blocking methods including DNS blocking, IP-level blocking, HTTP/S blocking, and transport-layer interference. Highlight missing or inconsistent blocks.

    Evidence-Grade Reporting for Legal Teams

    Generate formal, timestamped logs and reports suitable for legal and regulatory use. Support court filings, renewals, and enforcement proceedings.

    Automated Alerts & Long-Term Trends

    Receive timely notifications when blocking compliance changes. Track compliance patterns and blocking effectiveness across markets and ISPs over time.

    Who Can Use BlockWatch

    Built for rights holders, trade associations, and legal teams.

    Copyright Owners

    Monitor blocking compliance across multiple ISPs and jurisdictions.

    Trade Associations

    Provide members with independent oversight of ISP blocking implementation.

    Legal Teams

    Generate evidence-grade reports for court filings and enforcement proceedings.

    Ready to Monitor ISP Compliance?

    Get in touch to learn how BlockWatch can provide independent oversight of blocking effectiveness.

    Control Connection Comparison

    Accurate Intelligence, Not False Positives

    BlockWatch uses a control connection to distinguish genuine ISP blocks from site outages, delivering accurate results with no false positives.

    The video shows BlockWatch monitoring across multiple ISPs and returning accurate results. (Specific ISPs names have been blurred out in this video for privacy reasons)

    Post Processing

    Definitive Block Status

    Each check produces a definitive blocked or not-blocked verdict, giving you a clear, evidence-based result for every monitored site and network.

    The video demonstrates BlockWatch surfacing multiple networking protocols as evidence, such as: Combined, DNS, HTTP, HTTPS.

    Multi-Layer Protocol Check

    Every Blocking Technique

    BlockWatch monitors for a full range of blocking techniques: DNS configuration changes, IP filtering and null routing, and Deep Packet Inspection (DPI) on the HTTP Host header and SNI Server Name for HTTPS. No matter how an ISP implements a block, the platform can detect and classify it.

    The video shows a sample BlockWatch probe result and block analysis, one of thousands run, with several months of history retained as supporting evidence.

    How It Works

    How BlockWatch Works

    01

    Accurate Intelligence, Not False Positives

    BlockWatch uses a control connection to distinguish genuine ISP blocks from site outages, delivering accurate results with no false positives.

    02

    Definitive Block Status

    Each check produces a definitive blocked or not-blocked verdict, giving you a clear, evidence-based result for every monitored site and network.

    03

    Every Blocking Technique

    BlockWatch monitors for a full range of blocking techniques: DNS configuration changes, IP filtering and null routing, and Deep Packet Inspection (DPI) on the HTTP Host header and SNI Server Name for HTTPS. No matter how an ISP implements a block, the platform can detect and classify it.

    04

    Nature and Source of the Block

    BlockWatch uses authoritative block checking to precisely identify the nature and source of each block. You know not only that a site is blocked, but which operator is blocking it and how.

    05

    No Partial Blocks Missed

    BlockWatch checks multiple DNS servers, IP addresses, and protocols for each site, ensuring partial or inconsistent blocks are never missed.

    06

    Complete View of Blocking

    When blocking is inconsistent across resolvers, IPs, or protocols, BlockWatch surfaces partial and combined statuses, giving you a complete view of how blocking is applied.

    Ready to Monitor ISP Compliance?

    Get in touch to learn how BlockWatch can provide independent oversight of blocking effectiveness.

    Comprehensive Blocking Detection

    Identify and classify every type of ISP blocking method.

    DNS blocking (NXDOMAIN, sinkholing, redirections)
    IP-level blocking and null routing
    HTTP/S blocking, proxying, or injection of branded block pages
    Transport-layer interference, including TCP resets and SNI filtering

    Highlights missing, partial, or inconsistent blocking.

    Enterprise SaaS Platform

    A fully managed compliance monitoring service.

    Fully managed service with no software to install
    Secure web dashboard for copyright owners and legal teams
    Role-based access control for multi-organisation access
    Monitoring from real consumer ISP networks and points of presence worldwide
    Export results as CSV

    FAQ

    Questions, Answered.

    01What is BlockWatch?
    BlockWatch is an ISP blocking compliance monitoring platform that independently verifies whether blocking restrictions are properly implemented across ISPs, mobile operators, and VPN providers globally. It provides rights holders and legal teams with continuous, automated oversight of blocking effectiveness across jurisdictions.
    02Who is BlockWatch designed for?
    BlockWatch is built for rights holders, trade associations, and legal teams who need to verify that networks are complying with blocking requirements. Whether you manage a single blocking mandate or oversee compliance across multiple jurisdictions, BlockWatch provides the independent evidence you need.
    03How does BlockWatch monitor ISP compliance?
    BlockWatch monitors sites from points of presence on real consumer ISP networks worldwide. It automatically tests access to blocked sites across configurable ISPs and mobile operators, comparing results against a control connection to ensure accuracy. This continuous, automated monitoring replaces the need for manual spot checks.
    04What types of blocking can BlockWatch detect?
    BlockWatch detects and classifies all major blocking methods, including DNS blocking (NXDOMAIN, sinkholing, redirections), IP-level blocking and null routing, HTTP/S blocking and branded block pages, and transport-layer interference such as TCP resets and SNI filtering. It also identifies partial, inconsistent, or missing blocks across protocols and resolvers.
    05What kind of reports does BlockWatch produce?
    BlockWatch generates evidence-grade, timestamped reports suitable for court filings, blocking order renewals, and enforcement proceedings. Reports include detailed blocking status per ISP, protocol-level analysis, and long-term compliance trends. Results can be exported as CSV.
    06How do I get started with BlockWatch?
    Getting started is straightforward. Request a demo through our website, and our team will walk you through the platform, configure your ISP monitoring targets, and help you upload the domains and URLs subject to blocking orders. BlockWatch is a fully managed service with no software to install on your side.
    07How does BlockWatch differ from manual compliance checks?
    Manual checks are time-consuming, inconsistent, and difficult to scale across multiple ISPs and jurisdictions. BlockWatch automates the entire process, testing multiple DNS servers, IP addresses, and protocols simultaneously. It uses ISP-specific rule matching and control connection comparison to deliver reliable, repeatable results free from the false positives and coverage gaps that plague manual approaches.