Glossary

TXT Record — DNS Text Records Explained

A DNS TXT record stores arbitrary text data associated with a domain. TXT records are used for email authentication (SPF, DKIM, DMARC), domain verification (Google, Microsoft), and various security configurations. Most email authentication setup involves publishing TXT records — SPF lives entirely in a TXT record, DKIM public keys are published as TXT records, and DMARC policies are TXT records.

Common TXT Record Uses

v=spf1 ... ~all → SPF record
v=DKIM1; k=rsa; p=... → DKIM public key
v=DMARC1; p=none; rua=... → DMARC policy
google-site-verification=... → domain verification

TXT Record Limits

Single string: 255 characters max
Multiple strings: combine in one record
SPF: only ONE TXT record starting with v=spf1

Read live TXT from DNS Preflight

Open DNS Preflight →

Also read: SPF record · DKIM · DMARC

FAQ

What is a DNS TXT record?

A DNS record that stores text data. Used for SPF, DKIM, DMARC, and domain verification.

Can I have multiple TXT records?

Yes — except for SPF. You can have multiple TXT records but only one can start with v=spf1.

Why is my TXT record not working?

Check for extra spaces, incorrect quote formatting, or truncation by your DNS provider. Long TXT records must be properly joined.

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