SECURITYOpen source
SPF, DKIM & DMARC Record Checker Parse & Validate Email Authentication DNS Records
Parse and validate SPF, DKIM and DMARC records. Counts SPF DNS lookups against the limit of 10, checks DMARC policy strength and estimates DKIM key size.
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Records are fetched over DNS-over-HTTPS from Cloudflare. Nothing else leaves your browser.