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.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Rewardful is a way for SaaS companies to setup affiliate and referral programs with Stripe.
SEOmatic facilitates modern SEO best practices & implementation for Craft CMS 3.