Email Diagnostics by Acinsoft

Domain Inspector by Acinsoft

acinsoft/acinsoft-domain-inspector

Inspect public domains: DNS records and TTL, HTTPS, TLS certificates, RDAP registration and email configuration. Choose Cloudflare or Google. Structured JSON and exportable results with source timings and clear partial-data warnings.

Email Security & Deliverability Analyzer — SPF DKIM DMARC

perryay/email-security-analyzer

Enterprise email domain security audit: SPF/DKIM/DMARC/BIMI/MTA-STS DNS validation, 50+ blacklist scans, MX record analysis with IP resolution, deliverability scoring (0-100), and detailed remediation advice.

Domain Email Security Auditor

contributive_naiad_wgt/domain-email-security-auditor

Audit public MX, SPF, DMARC, CAA, and nameserver records for spoofing risk and email-authentication posture without an API key.

DNS Lookup | Scrape Domain Records & Security Intelligence

datascoutapi/dns-lookup

DNS lookup scrapes 22 data points including 10 DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, PTR, CAA) + email security analysis ( SPF/DKIM/DMARC), SSL certificate checker, domain monitoring. Processes 100 domains per batch with security scoring.

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.

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.

DMARC Record Checker - Fetch, Parse & Grade DMARC Policy

eliai/dmarc-record-checker

Check DMARC for up to 200 domains per run: policy, pct, rua/ruf reports, grade (enforced/monitor/missing) and plain-English issues. $0.0008 per domain, no start fee, failures never charged — cheaper than measured incumbents ($0.001-$0.05/domain). For security audits, deliverability and lead gen.

SPF Record Checker - Validate SPF & Count DNS Lookups

eliai/spf-record-checker

Validate SPF for up to 200 domains per run: parsed mechanisms, DNS lookup count vs the RFC 7208 limit of 10, all-qualifier and plain-English issues. $0.0008 per domain, no start fee, failures never charged — cheaper than measured incumbents ($0.001+/item). For deliverability and security audits.

🛡️ Audit MX, SPF, DMARC, DKIM, MTA-STS, TLS-RPT, BIMI, CAA, DNSSEC, and web TLS without sending email. Get evidence-backed security and deliverability scores, prioritized fixes, and a client-ready report.

Email Verifier, Finder & Deliverability Checker

automation-lab/email-enrichment

Verify and find business emails for lead lists from Google Maps, websites, CRMs, or domains. SMTP, MX, SPF/DKIM/DMARC, catch-all, disposable, role-account, provider, and confidence scoring included.

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.