DNS TXT Lookup

Built for operators & agencies
Live DNS - no cached APIs
No login required
No data retention
Privacy first diagnostics
Prevents blacklisting - not causes it

List TXT records at the root of a domain (SPF, DMARC, verification strings, and more).

This checks TXT records at the root. For DKIM selectors, use the DKIM checker.

warning Emergency scan

What TXT records are actually used for

TXT records are a generic DNS mechanism used to publish text-based information about a domain. Email authentication relies heavily on TXT records to verify sender identity and enforce policy.

Common TXT records you will see

  • SPF: starts with v=spf1
  • DMARC: starts with v=DMARC1
  • Verification strings: Google, Microsoft, Apple, Facebook, Stripe

What usually goes wrong

  • Multiple SPF records (breaks SPF completely)
  • SPF too long (exceeds DNS lookup limits)
  • DMARC never enforced (p=none forever)
  • Old verification junk left behind

Next steps after TXT lookup