Font Awesome is a font and icon toolkit based on CSS and Less.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
Typekit is an online service which offers a subscription library of fonts.
Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.