HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Ko-fi is an online platform that helps content creators get the financial support.
Liberapay is a non-profit organisation subscription payment platform.
Netlify providers hosting and server-less backend services for web applications and static websites.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.