DNS Lookup
Query common Domain Name System (DNS) resource records—including A, AAAA, MX, TXT, NS, CNAME, and SOA—and inspect TTL caching windows and DNSSEC Authentic Data (AD) status.
Query: apnic.net · Type: A · DNSSEC AD: true (Verified)
Status: NOERROR (0) — Query completed successfully
| Name | Type | TTL (s) | Record Data / Answer | Action |
|---|---|---|---|---|
| apnic.net | A | 86122s | 202.12.29.1 |
Resolver: Cloudflare Public DNS-over-HTTPS (1.1.1.1 / application/dns-json)
Checked: 2026-11-01T18:21:28.464Z
Reference Guide to Common DNS Record Types
| Record Type | IANA Type ID | Primary Function | Example Answer Value |
|---|---|---|---|
| A | 1 | Maps a hostname to a 32-bit IPv4 address (RFC 1035). | 203.119.101.1 |
| AAAA | 28 | Maps a hostname to a 128-bit IPv6 address (RFC 3596). | 2001:df0:8::1 |
| MX | 15 | Specifies mail exchange servers and priority preference for a domain. | 10 mail.example.in. |
| TXT | 16 | Publishes sender policy (SPF), DKIM keys, DMARC policies, and domain verification tokens. | "v=spf1 include:_spf.example.in ~all" |
| NS | 2 | Delegates a DNS zone to authoritative nameservers. | ns1.apnic.net. |
| CNAME | 5 | Aliases a subdomain to another canonical domain name. | cdn.example.net. |
| SOA | 6 | Start of Authority metadata including primary nameserver, serial number, and zone refresh timers. | ns1.apnic.net. hostmaster.apnic.net. 2026110101 ... |
Need to map an IP address back to a hostname? Use our Reverse DNS (PTR) Lookup tool or read What Is Reverse DNS?.
Technical Specifications & Protocol Facts
Authoritative parameters, dimensions, and IETF RFC compliance
| Parameter / Dimension | Technical Specification | Standard / Authority |
|---|---|---|
| Supported DNS Record Types | A (1), AAAA (28), MX (15), TXT (16), NS (2), CNAME (5), SOA (6) | RFC 1035 / RFC 3596 |
| Transport Protocol | DNS-over-HTTPS (DoH JSON API) with dual-resolver fallback | RFC 8484 |
| Internationalized Domains (IDN) | Automatic Punycode (A-label xn--) normalization for Unicode labels | RFC 5891 IDNA2008 |
| Max Domain Length & Validation | 253 ASCII chars total; max 63 chars per label; URL/port rejection | RFC 1034 / RFC 1123 |
Frequently Asked Questions
Concise answers verified against IANA, APNIC, and IETF protocol standards
What is the difference between an A record and an AAAA record in DNS?
An A record maps a domain name to a 32-bit IPv4 address (such as 93.184.216.34), whereas an AAAA (quad-A) record maps a domain name to a 128-bit IPv6 address (such as 2606:2800:220:1::).
What does DNS RCODE 3 (NXDOMAIN) vs RCODE 0 (NOERROR) mean?
NOERROR (RCODE 0) means the domain exists in DNS, even if it has zero records of the specific type requested. NXDOMAIN (RCODE 3) means the queried domain name does not exist at all.
Can I query internationalized domains like .भारत in the DNS Lookup tool?
Yes. The DNS Lookup utility automatically converts Unicode domain labels into standards-compliant IDNA Punycode (xn--) before querying public DNS-over-HTTPS resolvers.
Related Network Tools & Technical Guides
Contextual utilities and reference documentation verified for this workflow
Diagnostic & Calculation Utilities
DNS Lookup · Canonical: https://ipaddresslookup.in/dns-lookup · Reviewed: 2026-11-01
Reviewer: IPAddressLookup.in Technical Network Utility Group · Stateless Privacy · Accuracy & Data Limits