Using TLS without DNS

tlsnodns.go

package main

import (
	"context"
	"crypto/tls"
	"fmt"
	"net"
	"net/http"
)

func main() {
	client := &http.Client{
		Transport: &http.Transport{
			DialTLSContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
				conf := &tls.Config{
					ServerName: "google.com",
				}
				return tls.Dial("tcp", "142.250.64.110:443", conf)
			},
		},
	}

	res, err := client.Get("https://google.com")
	if err != nil {
		fmt.Printf("%v\n", err)
		return
	}
	defer res.Body.Close()
	fmt.Printf("%s\n", res.Status)
}