Now you can find more of what you're looking for on Facebook and discover fun connections between people, places and things.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
A pingback is one of four types of linkback methods for Web authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking to, or referring to their articles.
Open graph description entity tag
Open graph title entity tag