DKIM Checker
Check DKIM records for your domain. Auto-detects common selectors including Google, Microsoft, and more.
Leave selector empty to auto-check 10 common selectors: google, selector1, selector2, default, mail, k1, dkim, s1, s2, email
How to use the DKIM Checker
Check DKIM records for your domain. Auto-detects common selectors including Google, Microsoft, and more. Enter the domain, hostname, IP address, selector, or record value requested by the tool, then run the check to see the current public configuration. Use the result to confirm whether the domain is resolving correctly, whether email authentication is aligned, or whether a visible trust issue needs follow-up.
Enter the domain or value you want to inspect.
Review the returned records, warnings, and status signals.
Fix the DNS, hosting, SSL, or email setting, then retest.
What to check next
A single lookup rarely tells the whole story. For production websites, verify DNS, SSL, email authentication, blacklist status, and public security headers together before making a launch, migration, or deliverability decision. Common next checks after this page include DMARC Checker, SPF Checker, Email Auth Report.
DKIM Checker FAQ
What does the DKIM Checker check?
Check DKIM records for your domain. Auto-detects common selectors including Google, Microsoft, and more.
Is the DKIM Checker free to use?
Yes. The basic dkim checker is free and does not require a login. Paid Hostao reports and fix plans are available when you need analyst review or managed remediation.
When should I run the DKIM Checker?
Run it before DNS changes, email sender changes, hosting migration, SSL renewal, launch checks, or whenever a website, domain, or email delivery issue needs quick verification.