nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Website using the £ symbol on their website - meaning it may accept payment in this British currency.
Website using the ¥ symbol on their website - meaning it may accept payment in this South Korean currency.
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.