Google Analytics is a service offered by Google that generates detailed statistics about a website's traffic and traffic sources and measures conversions and sales. Google Analytics can track visitors from all referrers, including search engines and social networks, direct visits and referring sites. It also displays advertisin...
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.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.