Free DKIM Record Checker

Instantly check your domain's DKIM record and validate your email authentication setup to ensure your emails reach the inbox.

Tip: You can also use the format selector._domainkey.domain.com in the Domain field and leave Selector empty.

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What Does the DKIM Record Checker Test?

DKIM public key retrieval
Domain-level digital signature
DKIM selector validation
Key length (1024/2048 bit)
Key type (RSA)
Signing domain assertion
Cryptographic signature check
DKIM record existence
Authentication failure diagnosis

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Check Your DKIM Record in 3 Simple Steps

1

Enter Domain & Selector

Option 1: Enter domain:selector (e.g., saleshandy.com:google). Option 2: Enter the full host format selector._domainkey.domain.com in the Domain field and leave Selector empty.

2

Instant DNS Lookup

We query your DNS records in real time and retrieve your DKIM public key using the domain and selector you provided.

3

Get Actionable Results

See your full DKIM record, public key validation status, and specific steps to fix any configuration issues.

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The DKIM Check tool performs a DKIM record test against a domain name and selector for a valid published DKIM key record. There are two ways to use it: Option 1 — enter domain:selector (e.g., saleshandy.com:google) where the domain and selector are separated by a colon. Option 2 — enter the host/name format selector._domainkey.domain.com in the Domain Name field and leave the Selector field empty.

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