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Libpsl
Jul 20, 2023
C library to handle the Public Suffix List
A “public suffix” is a domain name under which Internet users can directly register own names.
Browsers and other web clients can use it to
- avoid privacy-leaking “supercookies”
- avoid privacy-leaking “super domain” certificates [1]
- domain highlighting parts of the domain in a user interface
- sorting domain lists by site
Libpsl…
- has built-in PSL data for fast access
- allows to load PSL data from files
- checks if a given domain is a “public suffix”
- provides immediate cookie domain verification
- finds the longest public part of a given domain
- finds the shortest private part of a given domain
- works with international domains UTF-8 and IDNA2008 Punycode
- is thread-safe
- handles IDNA2008 UTS#46 libicu is used by psl2c if installed
[1] http//lists.gnu.org/archive/html/bug-wget/2014-03/msg00093.html
Checkout these related ports:
- Zonenotify - DNS notify sender written in C
- Zonecheck - Perform consistency checks on DNS zones
- Zkt -
- Yandex-ddns - Use Yandex DNS as a dynamic DNS provider
- Yadifa - Authoritative nameserver with DNSSEC capabilities
- Wrapsrv - DNS SRV record command line wrapper
- Whoseip - Get information about IP addresses country code and network
- Wdns - Low-level DNS library
- Walker - Recover zone file information from servers that use DNSSEC
- Void-zones-tools - Prepare a list of void zones that can be readily fed into Unbound
- Vizone - Updates the serial number in one or more zonefiles
- Vhostcname - Synchronize DNS with server names and aliases from Apache vhost
- Utdns - Proxy UDP/DNS to TCP/DNS
- Updatedd - Dynamic DNS Update Client supporting multiple services
- Unbound - Validating, recursive, and caching DNS resolver