Frameworks

PerlPerl

Perl Usage Statistics · Download List of All Websites using Perl

Perl is a general-purpose programming language originally developed for text manipulation and now used for a wide range of tasks including system administration, web development, network programming, GUI development, and more.

Advertising

Google AdsenseGoogle Adsense

Google Adsense Usage Statistics · Download List of All Websites using Google Adsense

A contextual advertising solution for delivering Google AdWords ads that are relevant to site content pages.

Contextual Advertising

Web Hosting Providers
Email Hosting Providers

SPFSPF

SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

Standard

Sender IDSender ID

Sender ID Usage Statistics · Download List of All Websites using Sender ID

Sender ID is an anti-spoofing email framework heavily based on SPF.

Standard

Operating Systems and Servers

UnixUnix

Unix Usage Statistics · Download List of All Websites using Unix

A *nix based operating system (undisclosed).