HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Open Graph is a protocol that is used to integrate any web page into the social graph.
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
Vev is a cloud-based design and publishing platform that enables users to create interactive digital content without coding, using a drag-and-drop interface and built-in templates and integrations.