TXT Record LookupCheck TXT Records & Email Security
Query TXT records for SPF, DMARC, DKIM configuration, domain verification tokens, and other text-based DNS metadata.
TXT Records Explained
TXT records store arbitrary text data in DNS and serve critical functions for email authentication, domain verification, and security policies. SPF, DMARC, and DKIM all use TXT records to publish configuration data that mail servers query to validate email authenticity.
Common TXT Record Uses
SPF Records: Start with v=spf1 and define authorized mail servers. Example: v=spf1 include:_spf.google.com ~all
DMARC Records: Published at _dmarc.example.com, define email authentication policies. Example: v=DMARC1; p=quarantine; rua=mailto:[email protected]
DKIM Records: Published at selector subdomains like default._domainkey.example.com, contain public keys for signature verification.
Verification Tokens: Services like Google, Microsoft, and Atlassian require TXT records to prove domain ownership during setup.