1# Registry-Controlled Domain Service 2 3This directory contains Chromium's copy of the 4[Public Suffix List](https://publicsuffix.org/) and utilities for accessing it. 5This is useful for callers who need to understand what the eTLD ("effective 6Top-Level Domain") + 1 is for some hostname, which in turn is necessary to 7determine things like "this host should be allowed to read/write cookies from 8this other host". 9 10Update instructions can be found at src/net/tools/tld_cleanup/README. 11