Beehiiv RSS feed is a feature of the Beehiiv. Beehiiv is a relatively young, hosted newsletter platform built for businesses and creators.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Netlify providers hosting and server-less backend services for web applications and static websites.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Unpkg is a content delivery network for everything on npm.