Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
RedwoodJS is a full-stack serverless web application framework built by Tom Preston Werner (co-founder of Github) et al.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.
Vercel is a cloud platform for static frontends and serverless functions.