The protocol that runs the web. From request-response basics to HTTP/3 and QUIC — understanding the plumbing beneath every interaction.
Explore Topics
Methods, status codes, headers, and bodies — the building blocks of every HTTP exchange.
Multiplexing, header compression, QUIC, and how each version addressed the previous one's bottlenecks.
max-age, no-store, stale-while-revalidate — the caching headers that control freshness across the stack.
Preflight requests, allowed origins, credentialed requests — why CORS exists and how to stop fighting it.
Push-based communication over HTTP. When polling fails and WebSockets are overkill.
DNS, TCP, TLS, TTFB, content download — decoding the timeline to find what's actually slow.