Domains

Web & Networking

How data gets from one machine to another: networks, HTTP, TLS, APIs and browsers.

Topics

• Networking Fundamentals

  IP, TCP, DNS and the layers underneath every request.

  40 concepts

• HTTP

  The request-response protocol behind the web and most APIs.

  45 concepts

• TLS & Certificates

  Encrypting connections and proving who you're talking to.

  10 concepts

• API Styles & Formats

  REST, GraphQL, gRPC and the data formats they carry.

  27 concepts

• How Browsers Work

  What the browser does between a URL and pixels on screen.

  20 concepts

• Real-Time Communication

  Pushing updates to users the moment they happen.

  10 concepts