DoubleClick is a provider of digital marketing technology and services. Companies come to DoubleClick for expertise in ad serving, media, video, search and affiliate marketing to help them make the most of the digital medium.
The United States Postal Service, is an independent agency of the United States federal government responsible for providing postal service in the United States.
Non-public statistics and multiple page tracking are also available.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
PayPal is a American international e-commerce service that enables companies and individuals to send money and to accept payments without revealing any financial details.
websites using the $ symbol on their website - meaning it may accept payment in this currency used in Israel.
A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.
The http-equiv attribute provides an HTTP header for the information/value of the content attribute. The http-equiv attribute can be used to simulate an HTTP response header.