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Look up a domain’s DKIM record for a selector you provide, and explain its tags.
Runs entirely in your browser, nothing is uploadedDKIM selectors aren’t discoverable from DNS. You need to know or guess it (check a “DKIM-Signature” header in a real email from this domain, look for “s=selector”).
Look up and explain a domain’s SPF record, mechanism by mechanism.
Open toolLook up and explain a domain’s DMARC policy, tag by tag.
Open toolParse raw email headers and explain the Received chain and SPF/DKIM/DMARC results.
Open tool