Free DKIM Checker
Check a DKIM record by domain and selector. We verify the v=DKIM1 tag,
public key, key type and test-mode flag — then explain any problem in plain English.
Not sure of your selector? Look at the d= and s=
values in the DKIM-Signature: header of an email you sent — s= is the selector.
Watch deliverability across every client domain — automatically
Get a weekly plain-English deliverability verdict for every domain on your plan — branded with your agency's logo to forward to each client. One flat price covers all of them.
A one-off check is a snapshot — DMARC needs watching
PlainDMARC monitors your domains continuously and sends a weekly plain-English verdict per domain — what passed, what failed, and what to fix.
Free during early access · No card · One DNS record
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