Package httptrace provides mechanisms to trace the events within HTTP client requests.

Package httputil provides HTTP utility functions, complementing the more common ones in the net/http package.

Package pprof serves via its HTTP server runtime profiling data in the format expected by the pprof visualization tool.

Package mail implements parsing of mail messages.

Package netip defines an IP address type that's a small value type.

Package rpc provides access to the exported methods of an object across a network or other I/O connection.

Package jsonrpc implements a JSON-RPC 1.0 ClientCodec and ServerCodec for the rpc package.

Package smtp implements the Simple Mail Transfer Protocol as defined in RFC 5321.

Package textproto implements generic support for text-based request/response protocols in the style of HTTP, NNTP, and SMTP.

Package url parses URLs and implements query escaping.