curl --location --request GET 'https://api.cloudflare.com/client/v4/zones//secondary_dns/outgoing'
{
"errors": [],
"messages": [],
"result": {
"checked_time": "2019-10-24T17:09:42.883908+01:00",
"created_time": "2019-10-24T17:09:42.883908+01:00",
"id": "269d8f4853475ca241c4e730be286b20",
"last_transferred_time": "2019-10-24T17:09:42.883908+01:00",
"name": "www.example.com.",
"peers": [
"23ff594956f20c2a721606e94745a8aa",
"00920f38ce07c2e2f4df50b1f61d4194"
],
"soa_serial": 2019102400
},
"success": true
}