IETF Datatracker
IETF
See what's being standardized now — WG charters, draft revisions, and adoption status before it becomes an RFC.
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Live index of Internet-Drafts, working groups, areas, and RFC progression. Use for drafts in progress; RFC Editor for finalized text.
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By Area → Working Group → Document · Streams · IESG state
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The primary standards body for internet protocols. Produces RFCs through working groups. Use IETF Datatracker for active drafts, working group status, and revision history.
View all bodies →Curated specs from IETF
MessagePack is a practical middle ground when JSON is too large and Protobuf is too rigid. Know tag-byte structure for debugging wire captures.
WireGuard is replacing IPsec and OpenVPN for most new VPN deployments. Its simplicity (~4,000 lines of kernel code vs 400,000+ for OpenVPN/IPsec) makes it auditable. Used by Tailscale, Mullvad, Mozilla VPN, and most modern VPN services.