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DKIM Record Lookup
Check if a domain has DKIM configured. DKIM adds a digital signature to emails to prove they're authentic and haven't been tampered with.
Don't know the selector? Use "Auto-Scan" to try common DKIM selectors automatically.
What this tool checks
Use this to pull the selector record, validate the public key, and spot weak key sizes.
- Presence of the selector record at selector._domainkey
- Key type, key size, and signature metadata
- Parsed record details for troubleshooting
How to read the results
Confirm the selector and key size match your provider docs. If the record is missing, start with the selector name.
- Use Auto Scan if you are not sure of the selector
- Prefer 2048 bit keys when your provider supports it
- Keep the public key intact without line breaks
FAQ
Short, practical answers to common questions.