http
3 free lessons tagged http across Computer Science, Programming. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
DNS, HTTP, and the Move to QUIC
Before a byte of HTTP moves, a name has to become an address. Follow the full resolution path from stub resolver to authoritative server, see how TTLs govern change, then trace head-of-line blocking from HTTP/1.1 through HTTP/2's TCP problem to HTTP/3 running on QUIC over UDP.
Crafting Robust APIs: Essential REST Design Principles
Learn the foundational principles behind RESTful API design. This lesson covers statelessness, client-server architecture, uniform interface, effective use of HTTP methods and status codes, and practical tips for building scalable and maintainable web services.
HTTP Status Codes: Understanding Each Class and When to Use Them
HTTP status codes are essential for effective communication between clients and servers on the web. This lesson breaks down each class of status codes (1xx, 2xx, 3xx, 4xx, 5xx), explains their meaning, and provides practical guidance on when to use them in your applications.