Google Analytics is a free web analytics service that tracks and reports website traffic.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Typeform is a Spanish online software as a service (SaaS) company that specialises in online form building and online surveys.
Vercel is a cloud platform for static frontends and serverless functions.