I released AnyEvent::DNS::Cache::Simple to cpan today. cpan: https://metacpan.org/release/AnyEvent-DNS-Cache-Simple github: https://github.com/kazeburo/AnyEvent-DNS-Cache-Simple This module will cache DNS responses of AnyEvent::DNS. And you can improve the performance of AnyEvent applications. synopsis use AnyEvent::HTTP; use AnyEvent::DNS::Cache::Simple; use Cache::LRU::WithExpires; my $cache = C