Email Security Checker — SPF, DKIM, DMARC & MX Audit

Run real Google Lighthouse audits in bulk: performance, SEO, accessibility and best-practices scores, LCP/CLS/TBT with pass/fail, and top fixes. Mobile and desktop. No API key or quota. $10 per 1,000 audits.

Domain DNS & Email Security Checker

webdatatools/dns-email-security-checker

Domain DNS & Email Security Checker returns SPF, DKIM, DMARC, MX, MTA-STS, BIMI, CAA, nameservers, registrar and domain age for every domain you give it — one scored row per domain.

Bulk Email Deliverability Checker - SPF, DKIM, DMARC, MX

codeblix/email-deliverability-checker

Audit thousands of domains for email authentication, DNS issues, and deliverability risk. Checks SPF, DKIM, DMARC, MX, DNSSEC, MTA-STS, TLS-RPT, BIMI. No login, no proxy, no API keys needed.

Website Contact & Social Extractor

webdatatools/contact-extractor

Crawl any website and get one clean row per domain with every e-mail, phone number and social profile it exposes.

Website Tech Stack Detector

webdatatools/tech-stack-detector

Find out which CMS, e-commerce platform, analytics, ad pixels, chat widget and payment provider any website runs — one clean row per domain.

Domain Health Audit: DNS, WHOIS, SSL, SPF, DKIM & DMARC

apifmcpfactory/domain-health-audit

Audit 1 to 5,000 domains for DNS, WHOIS, SSL, HTTP and email-authentication problems, and get the exact DNS records to publish to fix each one. Scored, exportable, with a client-ready report. Validated against RFC 9989. For people and AI agents.

Check email deliverability and DNS security for any list of domains: SPF, DKIM, DMARC, MX, DNSSEC, MTA-STS, TLS-RPT and BIMI audited in one run. Deterministic scoring, actionable findings, no API keys.

DMARC & Email Security Checker

taroyamada/dns-dmarc-security-checker

Validate domain infrastructure in bulk to boost email deliverability. Extract DMARC policies, SPF records, and MX configurations to keep outreach out of spam.

🛡️ Security Headers Checker

taroyamada/security-headers-checker

Audit HTTP security headers in bulk across hundreds of websites. Extract OWASP compliance grades and detect missing HSTS or CSP directives instantly.

🛡️ 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.