CPAN.org is a website providing a vast collection of open source code, modules, and programs. It was created in 1995 by Larry Wall, and is the primary source of Perl modules. CPAN.org is a popular choice for developers, as it contains more than 200,000 modules, making it the largest collection of open source code available. It is also a great resource for developers who need to find and install specific modules quickly and easily. CPAN.org is a great resource for both newbies and experienced developers, as it provides a comprehensive library of modules that can be used to develop web applications and other software.

Each site contains up to the full 3.9 gigabytes of data, or a subset of it if the mirror's maintainer wishes to selectively choose. [ 1]dictionnaire.sensagent.leparisien.frThe heart of CPAN is its worldwide network of more than 260 mirrors in more than 60 countries. [ 2] CPAN's master site has over 149 direct public mirrors.

When the CPAN program is run for the first time on a machine, it will configure the CPAN mirror list to use for checking for new versions of modules and downloading Perl distributions.perl.comCPAN mirrors are online repositories which host or “mirror” the Perl module distributions on CPAN. There are hundreds of CPAN mirrors dispersed throughout the World.

By downloading that file from a mirror and extracting the timestamp we can trivially see when did they last update. Summary of the mirror tirade: I went for sites that liked and/or used Perl. Namingcpan.orgCPAN relies on a very simple trick: the CPAN master site updates a certain file once every hour, embedding a (UTC) timestamp in that file.