| crypto/tls | Package tls partially implements TLS 1.2, as specified in RFC 5246, and TLS 1.3, as specified in RFC 8446. |
| github.com/valyala/fasthttp | Package fasthttp provides fast HTTP server and client API. |
| golang.org/x/crypto/acme | Package acme provides an implementation of the Automatic Certificate Management Environment (ACME) spec, most famously used by Let's Encrypt. |
| golang.org/x/crypto/acme/autocert | Package autocert provides automatic access to certificates from Let's Encrypt and any other ACME-based CA. |
| net | Package net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets. |