Baidu Mapss is a mobile web and desktop mapping application created by Baidu. Baidu Maps provides users with location-based information and services, it sorts them by locations, routes, and local merchants on their PCs and mobile devices in both offline and online modes.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Meta descriptions are HTML attributes that provide concise explanations of the contents of web pages. Meta descriptions are commonly used on search engine result pages (SERPs) to display preview snippets for a given page.
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.