سجل TXT

Stores arbitrary text — most often SPF, DKIM, DMARC and ownership-verification tokens.

ما هو سجل TXT؟

A TXT record holds free-form ASCII strings. In practice it is the home of email-authentication policy (SPF, DKIM, DMARC), ownership-verification tokens (Google, Microsoft, AWS, Let's Encrypt DNS-01) and a handful of niche protocols.

مثال على ملف منطقة DNS

example.com.    300    IN    TXT    "v=spf1 include:_spf.google.com -all"
_dmarc.example.com.    300    IN    TXT    "v=DMARC1; p=reject; rua=mailto:dmarc@example.com"

حالات الاستخدام الشائعة

  • ▸SPF: declare which servers are allowed to send mail "from" your domain.
  • ▸DKIM: publish the public key used to sign your outbound mail.
  • ▸DMARC: tell receivers what to do when SPF/DKIM fail (none / quarantine / reject) + where to send reports.
  • ▸Domain verification: prove control of the domain to a cloud or SaaS provider.

مزالق شائعة

A TXT value is broken into 255-character chunks at the wire level — long DKIM keys are stored as multiple quoted strings. Most DNS UIs hide this, but some scripts can mis-concatenate.

استعلم عن سجلات DNS →

أنواع سجلات ذات صلة

MX record
Tells the world which mail servers receive email for a domain.
CNAME record
Aliases one hostname to another — the resolver follows it transparently.
CAA record
Certificate Authority Authorization — declares which CAs are allowed to issue certs for your domain.
نصيحة أمنية

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