cdnjs is a free distributed JS library delivery service.
FullCalendar is a full-sized drag and drop JavaScript event calendar.
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
ASP.NET is an open-source, server-side web-application framework designed for web development to produce dynamic web pages.
Moment.js is a free and open-source JavaScript library that removes the need to use the native JavaScript Date object directly.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
VK is a Russian online social media and social networking service.