The Have I Been Proxied service has been launched to check IP addresses in residential networks

Developers have introduced a free tool Have I Been Proxied, designed to check the public IP address for participation in residential proxy networks. The service allows users to determine if their home internet connection is being used to route third-party traffic without their knowledge.

Residential proxy networks are often formed at the expense of installing malware or using vulnerable applications on users' devices. As a result, the home IP address can be used to conduct cyberattacks, parse data, or bypass blocks, leading to the address being added to the blacklists of various services and security systems.

The tool works in web interface mode, analyzing the user's current IP address and matching it with known databases of nodes participating in commercial proxy networks. In case of a match, the system provides a notification, allowing the network owner to take measures to protect their equipment.

The use of residential proxies without the owner's consent is a common practice in the shadow segment of the internet. Such tools help identify unauthorized activity at the network gateway level, which is especially relevant for users whose IP addresses have suddenly started being blocked by popular resources or cloud DDoS protection services.

Details of the discussion on the technical implementation and principles of the service are available in the thread on Hacker News. The developers emphasize that the service does not store request history and does not collect users' personal data, limiting itself to checking the current state of the network node in real-time.