Plack::Middleware::Precompressed Plack::Middleware::Precompressed is an alternative (or rather, complement) to middlewares like Deflater, which will compress response bodies on the fly. For dynamic resources, that behaviour is necessary, but for static resources it is a waste: identical entities will be compressed over and over. Instead, *Precompressed* allows you to compress static resources once, e.g. as part of your build process, and then serve the compressed resource in place of the uncompressed one for compression-enabled clients. To do so, by default it appends a ".gz" suffix to the "PATH_INFO" and tries to serve that. If that fails, it will then try again with the unmodified URI. Note: this means requests for resources that are not pre-compressed will always be dispatched *twice*. You are are advised to use either the "match" parameter or the Conditional middleware or something of the sort, to prevent requests from passing through this middleware unnecessarily. INSTALLATION This is a Perl module distribution. It should be installed with whichever tool you use to manage your installation of Perl, e.g. any of cpanm . cpan . cpanp -i . Consult http://www.cpan.org/modules/INSTALL.html for further instruction. Should you wish to install this module manually, the procedure is perl Makefile.PL make make test make install COPYRIGHT AND LICENSE This software is copyright (c) 2022 by Aristotle Pagaltzis. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.