What Is a TXT Record? The "Sticky Note" of the Internet
If you have ever connected your website to Google Search Console, set up professional email, or applied for AdSense, you have probably been asked to "Add a TXT Record."
You copy a long string of random letters, paste it into your DNS, and magically, Google knows you own the website.
But what actually is that record?
The "Sticky Note" Analogy
Most DNS records tell computers where to go (like an address book).
A Records send traffic to a server IP.
MX Records send emails to a mailbox.
TXT Records are different. They don't send traffic anywhere. They are simply text notes left on your domain's front door.
Think of it like a sticky note on your house that says: "Leave package at back door" or "Beware of Dog." Humans don't usually see these notes, but robots (like Google's crawlers) read them every time they visit.
The 3 Main Uses for TXT Records
1. Proving Ownership (The "Secret Password")
When you tell Google, "I own findinfo.io," they don't believe you. Anyone can say that.
So, Google gives you a secret code (e.g., google-site-verification=12345) and says: "If you really own the domain, paste this on your front door."
Only the true owner has the keys to the DNS settings. By posting the note, you prove you hold the keys.
2. Email Security (SPF, DKIM, DMARC)
As we discussed in our DMARC guide, email security relies entirely on TXT records.
Your SPF record is just a text note that lists your approved IP addresses. Your DKIM signature is a text note containing a public encryption key.
3. Zero-Confusion Instructions
Sometimes, you need to leave instructions for specific bots. For example, the ads.txt file is a giant text record that tells advertisers: "Only these companies are allowed to sell ads on my site."
How to Read Your Own Notes
Curious what notes are stuck to your domain right now?
- Open a
https://findinfo.io/tool/dns-lookup DNS Lookup Tool. - Enter your domain name.
- Select "TXT" from the dropdown menu (or look for the TXT section).
You will likely see verification codes from Google, Facebook, or your email provider that you forgot about years ago!
Conclusion
TXT records are the unsung heroes of the internet. They don't direct traffic, but they provide the instructions that keep your site secure and verified. Next time you copy-paste that verification code, remember: you are just leaving a sticky note for a robot.
Need to verify a domain?
