Free DNS Lookup API - A, MX, TXT Records

Parameters

name	in	type	required	description
`domain`	query	string	required	A domain name, or an IP address (IPv4 or IPv6) for a reverse PTR lookup. Underscore names like _dmarc.example.com work
`type`	query	string	optional	Leave empty to query A, AAAA, MX, TXT, NS and CNAME one of `AAAAACNAMEMXNSTXTSOASRVCAAPTR` default `A`

Request

Send your key in the X-API-Key header. More languages and patterns live on the code examples page.

curl -s "https://apixies.io/api/v1/dns-lookup?domain=cloudflare.com" \
  -H "X-API-Key: YOUR_API_KEY"

const res = await fetch("https://apixies.io/api/v1/dns-lookup?domain=cloudflare.com", {
  headers: { "X-API-Key": "YOUR_API_KEY" }
});
const data = await res.json();
console.log(data);

$ch = curl_init("https://apixies.io/api/v1/dns-lookup?domain=cloudflare.com");
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => ["X-API-Key: YOUR_API_KEY"],
]);
$data = json_decode(curl_exec($ch), true);
curl_close($ch);

print_r($data);

import requests

res = requests.get(
    "https://apixies.io/api/v1/dns-lookup",
    params={"domain": "cloudflare.com"},
    headers={"X-API-Key": "YOUR_API_KEY"},
)
print(res.json())

Response

The result sits under data in the standard envelope. See the response format guide for errors and status codes.

returns

data.records: One object per record with type, host, TTL and value fields. MX records are sorted by priority.
data.record_count: How many records came back.
data.exists: False when the name doesn't exist at all (NXDOMAIN). True when it exists, even without records of this type.
data.types_queried: The record types that were looked up.
data.partial: True when some record types timed out, listed in timed_out.

example response 200

{
    "status": "success",
    "http_code": 200,
    "code": "SUCCESS",
    "message": "DNS lookup successful",
    "data": {
        "domain": "cloudflare.com",
        "exists": true,
        "records": [
            {
                "type": "A",
                "host": "cloudflare.com",
                "ttl": 76,
                "ip": "104.16.132.229"
            },
            {
                "type": "AAAA",
                "host": "cloudflare.com",
                "ttl": 106,
                "ipv6": "2606:4700::6810:84e5"
            },
            {
                "type": "MX",
                "host": "cloudflare.com",
                "ttl": 1800,
                "priority": 5,
                "target": "mxb-canary.global.inbound.cf-emailsecurity.net"
            },
            {
                "type": "NS",
                "host": "cloudflare.com",
                "ttl": 86400,
                "target": "ns4.cloudflare.com"
            }
        ],
        "record_count": 4,
        "types_queried": [
            "A",
            "AAAA",
            "MX",
            "TXT",
            "NS",
            "CNAME"
        ],
        "timed_out": {
            "A": false,
            "AAAA": false,
            "MX": false,
            "TXT": false,
            "NS": false,
            "CNAME": false
        },
        "partial": false,
        "queried_at": "2026-09-18T12:00:00+00:00"
    }
}

Authentication and limits

This endpoint needs an API key. Use the sandbox ("try it" above) to test it without registering. See the authentication guide for details.

Standard rate limits apply to this endpoint.

Common use cases

Domain migration monitoring

Track DNS propagation after migrating domains or changing providers. Monitor A, MX, and CNAME records across multiple domains simultaneously.

Email deliverability auditing

Check MX records and verify DNS configuration for email domains. Combine with Email Auth Validator for complete email infrastructure audits.

Infrastructure monitoring

Continuously verify that your DNS records point to the correct servers. Detect unauthorized DNS changes or hijacking attempts.

related endpoints

GET DNS Propagation Checker Ask five public DNS resolvers the same question at once and see whether they agree GET WHOIS Lookup Look up WHOIS registration data for a domain GET Email Auth Validator Validate SPF, DMARC, and DKIM email authentication records for a domain

guides

DNS Lookup API: Query A, MX, TXT Records Programmatically tutorial Query DNS records programmatically with a free REST API. Resolve A, AAAA, MX, TXT, CNAME, and NS records. JSON response,... Check MX Records via API for Email Deliverability use-case Look up MX records for any domain using the DNS lookup API. Verify mail server configuration, priority, and TTL values w... DNS Record Types Explained: A, AAAA, MX, TXT, CNAME, NS tutorial Learn what A, AAAA, MX, TXT, CNAME, and NS DNS records do. Practical examples with a free API to query any record type i...

getting started

authentication code examples response format

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