Networking
WebSockets: When Request-Response Is Not Enough
How WebSockets work, what they are actually good for, and the patterns for building real-time features without the common pitfalls.
Networking
DNS Explained: From Typing a URL to Getting a Response
What actually happens when you type a domain name into a browser - the full DNS resolution chain, from recursive resolvers to authoritative nameservers.
Networking
HTTP from the Ground Up: Request, Response, Headers
Every web application runs on HTTP. Here is what is actually in those bytes - and why the details matter.
Networking
HTTPS and TLS: What Happens During the Handshake
HTTPS is HTTP with a security layer underneath. Here is exactly what that layer does and how it does it.