Frameworks

PHPPHP

PHP Usage Statistics · Download List of All Websites using PHP

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

Programming Language

Web Hosting Providers
Operating Systems and Servers

SquidSquid

Squid Usage Statistics · Download List of All Websites using Squid

Proxy/Cache/load balancing opensource technology.

UnixUnix

Unix Usage Statistics · Download List of All Websites using Unix

A *nix based operating system (undisclosed).