Question 1

What is a DNS TXT record?

Accepted Answer

A DNS TXT record is a type of Domain Name System record that stores text data. It's commonly used for email authentication (SPF, DKIM, DMARC), domain verification, and various other purposes.

Question 2

What are common uses of TXT records?

Accepted Answer

Common uses include SPF records for email authorization, domain ownership verification for Google/Microsoft/SSL certificates, DKIM records for email signing, DMARC policies, and human-readable information about a domain.

Question 3

What is the maximum length of a TXT record?

Accepted Answer

A single TXT record string can be up to 255 characters. Longer values are split into multiple 255-character strings within the same TXT record. Total TXT record size is typically limited to about 4KB.

Question 4

How do I add a TXT record to my DNS?

Accepted Answer

Log in to your domain registrar or DNS hosting provider's control panel, find the DNS management section, add a new TXT record with the appropriate name/host and value, then save. Propagation may take up to 48 hours.