Topics
Browse specifications by domain. Each topic groups related specs across layers — the practical way to navigate if you know what you're building.
Internet Operations
The foundation stack: DNS, IP, TCP, TLS, HTTP. Everything needed to get bytes from A to B securely.
Auth & Identity
Who is allowed to do what: OAuth 2.0, OpenID Connect, JWT, WebAuthn, SCIM, and identity federation.
Sending and receiving mail reliably and safely: SMTP, IMAP, message format, and the SPF/DKIM/DMARC anti-abuse stack.
Web Platform
The browser as an application platform: document model, styling, scripting, storage, workers, crypto, streams, components, and device APIs.
Real-time & Media
Streaming, bidirectional communication, and media delivery: WebSocket, WebTransport, SSE, WebRTC, MSE/EME.
API Design
Standards for describing, building, and contracting APIs: OpenAPI, GraphQL, gRPC/protobuf, AsyncAPI, JSON Schema.
Blockchain & Web3
Decentralized protocol standards: Ethereum EIPs/ERCs, Bitcoin BIPs, W3C DIDs, Verifiable Credentials, and Sign-in with Ethereum.