Sample code for 30+ languages & platforms
JavaScript

DNS Query CAA Records

See more DNS Examples

Shows how to perform a DNS query to retrieve CAA records.

Note: This example requires Chilkat v9.5.0.96 or later.

Note
This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.
JavaScript
var success = false;

var dns = new CkDns();

var json = new CkJsonObject();
json.EmitCompact = false;

success = dns.Query("CAA","zoom.us",json);
if (success == false) {
    console.log(dns.LastErrorText);
    return;
}

console.log(json.Emit());

// Sample response.
// Parsing code below..

// {
//   "answer": {
//     "caa": [
//       {
//         "name": "zoom.us",
//         "ttl": 300,
//         "flags": 0,
//         "tag": "iodef",
//         "value": "mailto:security@zoom.us"
//       },
//       {
//         "name": "zoom.us",
//         "ttl": 300,
//         "flags": 0,
//         "tag": "issue",
//         "value": "amazon.com"
//       },
//       {
//         "name": "zoom.us",
//         "ttl": 300,
//         "flags": 0,
//         "tag": "issue",
//         "value": "digicert.com"
//       },
//       {
//         "name": "zoom.us",
//         "ttl": 300,
//         "flags": 0,
//         "tag": "issue",
//         "value": "godaddy.com"
//       },
//       {
//         "name": "zoom.us",
//         "ttl": 300,
//         "flags": 0,
//         "tag": "issue",
//         "value": "letsencrypt.org"
//       },
//       {
//         "name": "zoom.us",
//         "ttl": 300,
//         "flags": 0,
//         "tag": "issue",
//         "value": "pki.goog"
//       },
//       {
//         "name": "zoom.us",
//         "ttl": 300,
//         "flags": 0,
//         "tag": "issue",
//         "value": "sectigo.com"
//       }
//     ]
//   }
// }

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

var name;
var ttl;
var flags;
var tag;
var value;

var i = 0;
var count_i = json.SizeOfArray("answer.caa");
while (i < count_i) {
    json.I = i;
    name = json.StringOf("answer.caa[i].name");
    ttl = json.IntOf("answer.caa[i].ttl");
    flags = json.IntOf("answer.caa[i].flags");
    tag = json.StringOf("answer.caa[i].tag");
    value = json.StringOf("answer.caa[i].value");
    i = i+1;
}