The Public Suffix List
Browse cluster: Lean4 Formal Verification & Cryptography →The Public Suffix List is a comprehensive catalog of all known public suffixes—domain names under which Internet users can directly register names, such as `com`, `co.uk`, and `pvt.k12.ma.us`. The repository includes a Python-based linter tool that validates the syntax of the list before changes are committed, along with a Python utility for checking the DNS status, WHOIS data, and domain validity of entries in the list's private section. The project is maintained by volunteers who bridge the gap between ICANN's domain name governance and the practical needs of developers and users, and it strictly enforces submission guidelines and pull request template requirements to ensure consistency and transparency in the review process.