browserutils

DNS Record Types Reference

DNS record types reference (A, AAAA, CNAME, etc.)

DNS Record Types Reference is a free online tool from BrowserUtils that dns record types reference (a, aaaa, cname, etc.). It runs entirely in your browser — your data never leaves your device. No account required.

AAddress
Maps a domain name to an IPv4 address.
example.com. IN A 93.184.216.34
AAAAIPv6 Address
Maps a domain name to an IPv6 address.
example.com. IN AAAA 2606:2800:220:1:248:1893:25c8:1946
CNAMECanonical Name
Creates an alias from one domain name to another. Cannot be used at zone apex.
www.example.com. IN CNAME example.com.
MXMail Exchange
Specifies mail servers responsible for accepting email for the domain.
example.com. IN MX 10 mail.example.com.
TXTText
Holds arbitrary text data. Commonly used for SPF, DKIM, domain verification.
example.com. IN TXT "v=spf1 include:_spf.google.com ~all"
NSName Server
Delegates a DNS zone to use the given authoritative name servers.
example.com. IN NS ns1.example.com.
SOAStart of Authority
Contains administrative information about the zone including primary nameserver, admin email, and serial number.
example.com. IN SOA ns1.example.com. admin.example.com. 2024010101 3600 900 1209600 86400
PTRPointer
Maps an IP address to a domain name (reverse DNS lookup).
34.216.184.93.in-addr.arpa. IN PTR example.com.
SRVService
Specifies the location of servers for specific services (host, port, priority, weight).
_sip._tcp.example.com. IN SRV 10 60 5060 sip.example.com.
CAACertification Authority Authorization
Specifies which Certificate Authorities are allowed to issue certificates for the domain.
example.com. IN CAA 0 issue "letsencrypt.org"
NAPTRNaming Authority Pointer
Used for ENUM and SIP URI mapping. Supports regular expression-based rewriting.
example.com. IN NAPTR 100 10 "u" "E2U+sip" "!^.*$!sip:info@example.com!" .
DNSKEYDNS Key
Holds public keys used in DNSSEC to verify DNS data integrity.
example.com. IN DNSKEY 256 3 8 AwEAAb...
DSDelegation Signer
Used in DNSSEC to link a child zone to its parent zone.
example.com. IN DS 12345 8 2 49FD46E6C4...
RRSIGResource Record Signature
Contains a DNSSEC signature for a record set.
example.com. IN RRSIG A 8 2 3600 20240201 20240101 12345 example.com. ...
TLSATLS Authentication
Associates a TLS certificate with a domain name for DANE (DNS-Based Authentication).
_443._tcp.example.com. IN TLSA 3 1 1 2bb183af...
SSHFPSSH Fingerprint
Publishes SSH host key fingerprints in DNS for verification.
host.example.com. IN SSHFP 2 1 123456789abcdef...
ALIASAlias (non-standard)
Similar to CNAME but can be used at the zone apex. Supported by some DNS providers.
example.com. IN ALIAS other.example.com.
LOCLocation
Specifies geographical location information for a domain.
example.com. IN LOC 37 46 30.000 N 122 25 10.000 W 0.00m
HINFOHost Information
Provides information about the host CPU and operating system.
example.com. IN HINFO "Intel" "Linux"

Related guides

GlossaryWhat is DNS?

How to use DNS Record Types Reference

  1. 1 Paste or type your input into the editor above.
  2. 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
  3. 3 Copy the result with one click or continue editing your input.

About DNS Record Types Reference

Free online DNS record types reference. Browse all DNS record types including A, AAAA, CNAME, MX, TXT, NS, SOA, and more with descriptions and examples. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.

DNS Record Types Reference specs

Runtime
100% client-side (browser)
Built on
WHATWG URL API and Headers/Fetch standards as implemented by modern browsers
Cost
Free — no account, no rate limits, no usage caps
Browser support
Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
Part of
299 developer tools on BrowserUtils (100% client-side)

Questions

What are the most common DNS record types?
The most common DNS record types are A (IPv4 address), AAAA (IPv6 address), CNAME (canonical name alias), MX (mail exchange), TXT (text data, often used for SPF/DKIM), and NS (name server).
What is the difference between A and CNAME records?
An A record maps a domain name directly to an IPv4 address, while a CNAME record maps a domain name to another domain name (an alias). CNAME records cannot be used at the zone apex (root domain).
What is a TXT record used for?
TXT records store text data and are commonly used for email authentication (SPF, DKIM, DMARC), domain ownership verification (Google Search Console, SSL certificates), and other machine-readable metadata.
What is an MX record and how does email routing work?
An MX (Mail Exchange) record specifies the mail server responsible for receiving email for a domain. MX records include a priority value so mail is delivered to the preferred server first, with fallback to lower-priority servers.
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<iframe src="https://www.browserutils.dev/embed/dns-record-types-reference" width="100%" height="500" frameborder="0" title="DNS Record Types Reference"></iframe>

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