Google Publisher Tag (GPT) is an ad tagging library with which you can dynamically build ad requests. GPT takes key details from you such as ad unit name, ad size, and custom targeting, builds the request, and displays the ad on web pages or mobile apps.
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.
Gemius SA is the largest online research agency in Central and Eastern Europe.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Google Tag Manager makes it easy for marketers to add and update website tags including analytics, remarketing, and more.
Sites who has this tag are verfied by google to use WebMaster tools
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.
Google's hosted library for web fonts. Allows websites to choose and use fonts from a free, wide variety of fonts.