Check a domain's DMARC and SPF

Enter any domain and see what its public DNS says about email authentication: whether a DMARC record exists, whether anyone is collecting the reports, and whether the SPF record still evaluates.

Only public DNS records are read. Nothing is sent to the domain, nothing is stored, and no sign-up is required.

Managing more than 20 domains? checkdmarc collects the DMARC reports for all of them and sends one plain-English summary a week — white label on the higher tier. See how it works.