publicsuffix - Public Suffix Checking Maven Central Code of Conduct

A "public suffix" is one under which Internet users can (or historically could) directly register names. Some examples of public suffixes are .com, and The Public Suffix List is a list of all known public suffixes. The Public Suffix List is an initiative of Mozilla, but is maintained as a community resource. It is available for use in any software, but was originally created to meet the needs of browser manufacturers. It allows browsers to, for example:

  • Avoid privacy-damaging "supercookies" being set for high-level domain name suffixes
  • Highlight the most important part of a domain name in the user interface
  • Accurately sort history entries by site

More complete documentation of the larger initiative can be found at

Head on over to the microsite

Quick Start

To use publicsuffix in an existing SBT project with Scala 2.13 or a later version, add the following dependencies to your build.sbt depending on your needs:

libraryDependencies ++= Seq(
  "io.chrisdavenport" %% "publicsuffix" % "<version>"