The current implementation is a pre-alpha prototype and represents an early-stage proof of concept. The implementation is intended to validate the core architecture and functionality; robustness, scalability, fault tolerance, and operational aspects remain subjects for further development and evaluation.

IP Blocking Collateral Damage Simulator*

Affected Domains

Number of Domains Most Likely to Be Affected.

Reachability

Median Count of Additional Unblocked IPs Enabling Reachability of Affected Domains. Special-Purpose Public Resolver Cloud Provider

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Blocked (OONI)

Number of Domains Potentially Blocked According to OONI.

About

The IP blocking simulator relies on publicly available mappings between domains and IP addresses, primarily covering widely used and highly ranked domains. As a result, the simulator provides an estimate of the potential impact of IP-based blocking rather than a complete inventory of all affected services. Domains with limited popularity, lower visibility, regional usage, or unavailable public IP mapping data may not be represented in the dataset. Consequently, some IP addresses may appear to host fewer domains than they actually do, and the estimated collateral impact of blocking may be understated in cases where less prominent domains are omitted.