Braintree, a division of PayPal, specializes in mobile and web payment systems for ecommerce companies. Braintree provides clients with a merchant account and a payment gateway.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
React is an open-source JavaScript library for building user interfaces or UI components.
Ruby on Rails is a server-side web application framework written in Ruby under the MIT License.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.