scheme

const (
	HTTP      Instance = "http"
	HTTPS     Instance = "https"
	GRPC      Instance = "grpc"
	XDS       Instance = "xds"
	WebSocket Instance = "ws"
	TCP       Instance = "tcp"
	UDP       Instance = "udp"
	// TLS sends a TLS connection and reports back the properties of the TLS connection
	// This is similar to `openssl s_client`
	// Response data is not returned; only information about the TLS handshake.
	TLS Instance = "tls"
	// DNS does a DNS query and reports back the results.
	DNS Instance = "dns"
)