Really Simple Discovery is a way to help client software find the services needed to read, edit, or "work with" weblogging software.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
DNS services provided by HostGator.
The DOCTYPE is a required preamble for HTML5 websites.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.
Wesites using favicon rel tag
Indicates that the site provides an interface specifically for searching the document and its related resources.
These websites are related to pinwiki.com in terms of content, traffic and structure