publicsuffix

    publicsuffix/list

    The Public Suffix List

    backend
    Go
    MPL-2.0
    3.0K stars
    2.3K forks
    3.0K GitHub watchers
    Updated Nov 4, 2026
    View on GitHub

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    The project lists 431 contributors on GitHub.

    Peaked at #100 in the weekly ranking the week of Oct 26, its best in the past year.

    Use Cases & Benefits

    • Provides a comprehensive list of all known public suffixes for domain name registration purposes.
    • Ensures accurate domain parsing and cookie setting by maintaining an authoritative, community-driven suffix list.
    • Use for validating domain boundaries in web browsers and security software to prevent cookie misuse.
    • Use for developers implementing domain name handling and parsing in networking or web applications.
    • Use for organizations managing domain registration policies or enforcing universal acceptance standards.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    Mozilla Public License 2.0

    Weak copyleft: changes to the licensed code itself must be shared when you distribute it, but code that merely uses it can stay under your own license.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    • No GitHub releases; pin a commit or tag instead of a release.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    A "public suffix" is one under which Internet users can (or historically could) directly register names. Some examples of public suffixes are com, co.uk and pvt.k12.ma.us. The Public Suffix List is a list of all known public suffixes.

    See https://publicsuffix.org/ and the Wiki link above for more information.

    All submissions must conform to the validation and acceptance factors and provide sufficient rationale or basically be as complete as possible, and follow the Guidelines, especially as they relate to format and sorting.

    The list is currently maintained by people who are volunteering their time towards universal acceptance and ensuring there is a bridge between the ICANN world of domain names and the crucial last mile - the world of developers and human users.

    Iteration back and forth will delay PR review or inclusion. Be extremely thorough, and patient.

    Excerpt from the publicsuffix/list README on GitHub (MPL-2.0 license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Forks

    2.3K+484

    Open issues

    136+38

    Compared with peers in Backend

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

    publicsuffix/list compared with Backend repositories by stars, 7-day star growth, health score and last release
    RepositoryStars+7dHealthLast release
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    NationalSecurityAgency/ghidra98.2K+2.3K6414 days ago
    microsoft/VibeVoice56.0K+1.1K29—
    publicsuffix/list3.0K—45—
    Category median56.0K+2.3K29—

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