DNS Tools
DKIM Record Lookup
Lookup a DKIM TXT record by domain and selector to confirm whether signing keys are published.
Lookup host
selector._domainkey
Best for
Outbound auth setup
Output
Published DKIM value
On This Page
DNS Tools
Lookup a DKIM selector
Enter the domain and selector to query the published DKIM TXT record under `_domainkey`.
What You Get
Built for deliverability and integration work
Selector-aware lookup
Review the exact DKIM record tied to the selector your sending platform expects.
Deployment-friendly
Useful after DNS changes, provider migrations, or new signing configuration rollouts.
Authentication workflow ready
Use with the SPF and DMARC tools to audit the full DNS authentication layer.
FAQ
DKIM Record Lookup questions
What is a DKIM selector?
A selector identifies which published public key a receiver should use when checking a DKIM signature.
Why do I need both a domain and selector?
DKIM records live on `selector._domainkey.yourdomain.com`, so both pieces are required to query the record.
Does this validate message signatures?
No. It confirms whether the DNS record is published. Signature validation happens when actual mail is received.
Next Step
Start free, then wire NexMailPro into your stack
Use the free tool for manual checks, then move into the REST API, JavaScript SDK, PHP SDK, Laravel package, or WordPress plugin when you are ready to automate.