WebSocket is a communication protocol that provides full-duplex communication channels over a single, long-lived connection, enabling interactive communication between web browsers and servers.

Amazon Web Services (AWS) is a comprehensive cloud services platform offering compute power, database storage, content delivery and other functionality.

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

Snowplow is an open-source behavioral data management platform for businesses.

Envoy is an open-source edge and service proxy, designed for cloud-native applications.

Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.

Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

Tengine is a web server which is based on the Nginx HTTP server.

PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.

Apache is a free and open-source cross-platform web server software.

Google Analytics is a free web analytics service that tracks and reports website traffic.