Analytics and Tracking

Google GadgetsGoogle Gadgets

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

The Google Gadgets API is a simple way to create little applications that run on multiple sites, including iGoogle, Google Desktop, Google Page Creator and personal sites

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.

SSL Certificates

HSTSHSTS

HSTS Usage Statistics · Download List of All Websites using HSTS

Forces browsers to only communicate with the site using HTTPS.

Web Servers

ApacheApache

Apache Usage Statistics · Download List of All Websites using Apache

Apache has been the most popular web server on the Internet since April 1996.