Text Record (TXT) | Playful Sparkle

A Text Record (TXT) is a versatile DNS record used to associate arbitrary text with a domain. While originally intended for human-readable notes, it is now the primary vehicle for Email Security (SPF, DKIM, DMARC) and third-party service verification.

In a professional web development workflow, TXT records are used as a “handshake” to prove domain ownership to services like Google Search Console, Microsoft 365, or SSL certificate providers. They are also the backbone of modern anti-spam measures, allowing you to publish policies that tell receiving mail servers exactly which IPs are authorized to send mail on your behalf.

Frequently Asked Questions

Yes. A single string in a TXT record is limited to 255 characters. However, you can concatenate multiple strings together within one record to hold longer data, such as high-bit DKIM public keys.

Technically, there is no hard limit, but having too many can increase the size of the DNS response. If the response exceeds 512 bytes, it may require switching from UDP to TCP, which can slightly slow down resolution.

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Frequently Asked Questions

Is there a character limit for TXT records?

How many TXT records can one domain have?

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