no-direct-ip — OllieJC

Stop accidental visits to an external or public IP address. Useful for security analysts and researchers handling potentially malicious IP addresses.

Features

• Option to redirect to default search engine.
• Completely local with no external lookups or tracking.
• Multi-language support in the blocked page (based of browser's language).
• Blocked page follows browser's dark mode.
• Blocks both IPv4 and v6 addresses.
• Multi-browser support (Edge, Chrome, Firefox, and Firefox for Android tested).

The following IP addresses are allowed:

• 127.0.0.0/8
• 10.0.0.0/8
• 192.168.0.0/16
• 172.16.0.0/12
• 169.254.0.0/16
• ::1/128
• fd00::/8

Source code available from https://github.com/OllieJC/no-direct-ip