check_web2 is intended to be used to check web-sites according a configuration. The configuration covers the request configuration (including agent part) and check configuration to specify check parameters. See WWW::Mechanize::Script for details about the configuration options. This script is created as successor of an check_web script of a nagios setup based on HTTP::WebCheck. This module isn't longer maintained, so decision was made to create a new environment simulating the old one basing on WWW::Mechanize.