DKIM Record Checker

Free online DKIM lookup tool to lookup, check, and validate your DKIM DNS record with a single click!

Why should I perform a DKIM lookup?

Authentication protocols often do not perform as they should and face technical issues. With our free DKIM Record Lookup and DKIM tester tool, you can instantly view the DKIM record validation status in your DNS in a comprehensive format.

How to Check DKIM record in the DNS using a DKIM record checker?

Enter your domain name in the Name field
Enter your DKIM selector
Click on the “DKIM lookup” button to initiate your DKIM check

Where can I find my Selector?

You can easily extract your selector from your email header information. We have covered this topic in detail in our how to find DKIM selector guide.

What type of information does a DKIM lookup provide?

DKIM record validation status
Checks to confirm the presence of a published DKIM TXT record in your DNS
Checks your DKIM tags, record value, and protocol version
Checks your DKIM record syntax
Highlights errors associated with your DKIM TXT record

Troubleshooting DKIM errors

Your lookup may lead to the discovery of several errors and vulnerabilities in your authentication system, and you need to take steps to resolve them fast before the next attack incident. To troubleshoot:

Speak to our Experts on best practices
Enable a strict policy (adkim=s)
Monitor your authentication results (either using your DMARC reporting tool or by directly viewing your email header information)
Make sure you are aligning your third-party sending sources (e.g. MailChimp, Office 365)

Additional Information on DKIM

DKIM: Definition, Functions, and Use Cases

On generating your record, you’ll be given two keys: one public and one private. The public key will be shared with everyone who sends you emails (or wants to send emails from your domain), while the private key remains secret on your end. These keys are used by your mail server when sending out messages, creating one signature per message so that receivers know where to look for information about its sender.

The specification is defined in RFC 6376.

This in turn verifies the following:

Whether the sender can be trusted
Whether the message was altered during transmission

Can I have more than one DKIM record?

Yes. You can have multiple DKIM records published on your DNS. This facilitates DKIM key rotation for enhanced protection and won’t return an error during your DKIM lookup.

I have DKIM, do I still need DMARC & SPF?

Yes. Your DKIM record does protect you against messager alterations and email spam but it isn’t effective against spoofing attacks without DMARC and SPF. A combination of the three at the right degree of enforcement can be a boon for your email deliverability and your domain’s safety.

Lookup, check and validate your record using our Free DKIM record checker!

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