DKIM Validator
Look up a domain's DKIM key for a given selector, check it is published and not revoked, and gauge the key strength. Resolved on Uptimeify's EU servers.
End the manual growth tax.
Running checks by hand eats valuable agency time. Uptimeify monitors your entire client portfolio from one place — on a fair, organization-wide quota model, on secure EU infrastructure. No per-client fees, no surprises.
Frequently asked questions about DKIM Validator
DKIM publishes a public key in DNS, and the selector is the label that picks which key — the record lives at selector._domainkey.yourdomain. The selector is chosen by whoever set up signing, so you find it in the DKIM-Signature header of a real email from the domain (the s= tag), or in your email provider's settings. Common ones include google, default, k1 and selector1.
The query runs on Uptimeify's EU servers, not in your browser — the selector and domain you enter are sent to us only to perform the lookup and are not stored. As an EU-built, EU-hosted provider, Uptimeify keeps this off US infrastructure and clear of US Cloud Act exposure, which matters for agencies handling client data under GDPR.
A revoked or missing DKIM key breaks your email signatures and sinks deliverability — usually unnoticed until replies stop coming. Verify the key here, then let Uptimeify watch your domain's DNS and email records continuously and alert you the moment something changes.
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