DKIM Inspector
DKIM Record Inspection
Inspect a pasted DKIM public-key TXT record.
Usage guide & examples
1. Paste one complete DKIM-Signature header from the email. d= is the signing domain, s= the selector, a= the signing algorithm. 2. Copy the extracted DNS name and query its TXT. 3. Paste that public-key TXT into the second input; p= is the public key.
This checks record structure and encoding, not the email’s cryptographic signature. A successfully parsed key does not mean DKIM pass.
Console flow / input example
DKIM-Signature: v=1; a=rsa-sha256; d=example.com; s=selector1; ... selector1._domainkey.example.com TXT v=DKIM1; k=rsa; p=...
Processed locally. No input is uploaded or stored.
Scope
TXT encoding and tag inspection only. No DNS, cryptographic signature, RSA DER structure or key-strength verification is performed.
Result
Where do I use this result?
Copy this DNS name, query its TXT with Mail DNS, then paste the public-key record below.
Query DKIM with Mail DNS