HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Intercom is an American software company that produces a messaging platform which allows businesses to communicate with prospective and existing customers within their app, on their website, through social media, or via email.
Next.js is a React framework for developing single page Javascript applications.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Vercel is a cloud platform for static frontends and serverless functions.