nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
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
These websites are related to xd.gov.cn in terms of content, traffic and structure