cdnjs is a free distributed JS library delivery service.
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.
Materialize CSS is a front-end framework that helps developers create responsive and mobile-first web applications. It is based on Google's Material Design guidelines.