Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Maps is a web mapping service. It offers satellite imagery, aerial photography, street maps, 360° interactive panoramic views of streets, real-time traffic conditions, and route planning for traveling by foot, car, bicycle and air, or public transportation.
Google Optimize allows you to test variants of web pages and see how they perform.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
React is an open-source JavaScript library for building user interfaces or UI components.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.
Unpkg is a content delivery network for everything on npm.
Vercel is a cloud platform for static frontends and serverless functions.