# ListIPs

> ListIPs is an open source service for validating, synchronizing, and publishing IPv4, IPv6, and CIDR allowlists and blocklists as raw text URLs.

## Public pages

- [Home](https://listips.com/)
- [Documentation](https://listips.com/docs/)
- [About](https://listips.com/about/)
- [Source code](https://github.com/VIWEB-TECHNOLOGY/ListIPs)

## Product behavior

- Published output contains valid IPv4, IPv6, CIDR, and full-line `#` comments.
- Public list URL format: `https://listips.com/u/{username}/{list_slug}`
- Private list URL format: `https://listips.com/u/{username}/{list_slug}?token=sec_...`
- Private token URLs must be treated as credentials and should not be logged or shared.
- ListIPs publishes raw list data; consuming systems remain responsible for applying firewall changes safely.