Cowboy is a small, fast, modular HTTP server written in Erlang.
Express is a web application framework for Node.js, released as free and open-source software under the MIT License. It is designed for building web applications and APIs.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Heroku is a cloud platform as a service (PaaS) supporting several programming languages.
Linkedin Ads is a paid marketing tool that offers access to Linkedin social networks through various sponsored posts and other methods.
Stripe offers online payment processing for internet businesses as well as fraud prevention, invoicing and subscription management.
Tidio is a customer communication product. It provides multi-channel support so users can communicate with customers on the go. Live chat, messenger, or email are all supported.
Typekit is an online service which offers a subscription library of fonts.