BEM (Block, Element, Modifier) is a naming convention for classes in HTML and CSS what was developed by Yandex.
HCL Domino, formerly called IBM Domino (1995) and Lotus Domino (1989), is an enterprise server application development platform.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
VK is a Russian online social media and social networking service.