openwrt-packages-dist/net/ddns-scripts/files/usr/share/ddns/default/google.com.json

{
	"name": "google.com",
	"ipv4": {
		"url": "https://[USERNAME]:[PASSWORD]@domains.google.com/nic/update?hostname=[DOMAIN]&myip=[IP]",
		"answer": "good|nochg"
	},
	"ipv6": {
		"url": "http://[USERNAME]:[PASSWORD]@domains.google.com/nic/update?hostname=[DOMAIN]&myip=[IP]",
		"answer": "good|nochg"
	}
}