HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
IPFS is a peer-to-peer hypermedia protocol that provides a distributed hypermedia web.
Leaflet is the open-source JavaScript library for mobile-friendly interactive maps.
W3.CSS is a CSS framework developed by the World Wide Web Consortium (W3C), the main international standards organisation for the World Wide Web.