Domain Email Security Auditor

Audit a domain's SPF, DMARC, and DKIM email authentication DNS records for deliverability and security readiness.

Domain Security & Email Deliverability — DNS, SPF, DMARC, DKIM

ryanclinton/dns-record-lookup

Audit a domain portfolio for email spoofing, broken SPF, DMARC enforcement, DNSSEC and shadow-SaaS senders. Returns a posture score, what to fix first, vendor dependencies and drift alerts — not just records. Bulk DNS / SPF / DMARC / DKIM lookup, no API keys.

Domain Security Auditor — DMARC, SPF, DKIM, TLS & DNS in bulk

datadeltas/domain-security-auditor

Audit any list of domains for email spoofing risk and web security: SPF (with real lookup counting), DKIM, DMARC policy, MTA-STS, TLS expiry, DNSSEC, CAA and security headers — scored, graded, with the fix for every finding.

Domain DNS Footprint Auditor

glowing_glove/domain-dns-footprint-auditor

Audit domain DNS, MX, TXT, SPF, DMARC, nameserver, homepage, and security.txt signals for sales, security, and deliverability workflows.

One-call security report card per domain — WHOIS, DNS, SPF/DMARC email auth, SSL/TLS expiry, with a posture score and grade. No login.

DMARC, SPF & DKIM Validator

andok/dmarc-spf-dkim-validator

Validate email authentication DNS records to prevent spoofing and ensure high email deliverability for your domains.

Validate email deliverability and get domain intelligence: MX records, WHOIS, SPF, DKIM, DMARC, blacklist status, disposable detection and SSL info. Bulk email list cleaning for cold email and lead gen. No API key required. Try free — no API key, instant results.

MX Lookup — Email DNS, SPF, DKIM & DMARC

junipr/mx-lookup

Check MX, SPF, DKIM, DMARC, TXT, CAA, and email DNS records in bulk with validation findings and deliverability diagnostics.

DMARC Report Analyzer — Email Security & SPF/DKIM

perryay/dmarc-report-analyzer

Parse and analyze DMARC forensic and aggregate reports. Get SPF/DKIM alignment, identify spoofing attempts, and monitor email authentication health.