DNSレコードタイプ一覧

DNSレコードタイプ（A/AAAA/CNAME/MX/TXT/NS/SOA）の参照ガイド。

AMaps domain to IPv4 address

example.com. IN A 93.184.216.34Use: Point domain to web server

AAAAMaps domain to IPv6 address

example.com. IN AAAA 2606:2800:220:1::93Use: IPv6 web server addresses

CNAMECanonical name / domain alias

www IN CNAME example.com.Use: Create domain aliases

MXMail exchange server

example.com. IN MX 10 mail.example.com.Use: Email routing

TXTText record for arbitrary data

example.com. IN TXT "v=spf1 include:..."Use: SPF, DKIM, domain verification

NSNameserver for the domain

example.com. IN NS ns1.example.com.Use: Delegate DNS zone

SOAStart of Authority record

example.com. IN SOA ns1 admin 2024...Use: Zone metadata and serial

PTRPointer — reverse DNS lookup

34.216.184.93.in-addr.arpa. PTR example.com.Use: Reverse DNS (IP to domain)

SRVService record

_http._tcp IN SRV 10 5 80 example.com.Use: Locate services like SIP, XMPP

CAACertification Authority Authorization

example.com. IN CAA 0 issue "letsencrypt.org"Use: Restrict SSL certificate issuers

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DNSレコードタイプ一覧の主な使い方・用途

DNSレコードタイプ（A/AAAA/CNAME/MX/TXT/NS/SOA）の参照ガイド。