nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
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.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.
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.