Google Programmable Search Engine is a platform provided by Google that allows web developers to feature specialized information in web searches, refine and categorize queries and create customized search engines, based on Google Search.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
Wix.com is a cloud-based web development platform that allows users to create professional HTML5 websites and mobile sites, through the use of their online drag and drop tools.
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.