Free domain checkers
Instant SPF, DKIM, DMARC, MX and SSL checks — no login. Then let CrowWake watch the domain for you.
Full checkSPF + DKIM + DMARC + MX + SSL
SPF checker~5.4k US searches/mo
DKIM checker~5.4k US searches/mo
DMARC checker~6.6k US searches/mo
SSL expiryDays left on the cert
Guides
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