Domain DNS and Email Check: SPF, DMARC, DKIM, MX and SSL

Domain Health Checker

zinin/domain-health-checker

Audit DNS resolution, MX, SPF, DMARC, name servers, and TLS for a list of domains. Complete evidence cards include a 0–100 score, source states, issues, confidence, data gaps, and a next action. Incomplete or unsafe destinations remain unscored and are not billed as results.

Bulk DNS Records Lookup - A, MX, TXT, NS, CNAME

logiover/bulk-dns-records-lookup

Look up DNS records for thousands of domains at once — A, AAAA, MX, NS, TXT, CNAME, SOA and CAA — via DNS-over-HTTPS. Ideal for email deliverability (SPF/DMARC), security audits and migrations. No API key, export to CSV or JSON.

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.

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.

Bulk Domain Checker: WHOIS Lookup, DNS, SSL & HTTP

aiqlabs/bulk-domain-checker

Check a list of domains in one run: DNS records, mail provider from MX, SPF/DMARC, HTTP status and full redirect chain, SSL certificate expiry, and WHOIS/RDAP registration - plus a plain-English issue list per domain. No API keys.

DNS Lookup – Bulk DNS Records, MX, SPF, DMARC & Reverse DNS

gazidev/bulk-dns-lookup

Bulk DNS lookup for thousands of domains: A, AAAA, MX, NS, TXT, CNAME, SOA, CAA, SPF checker with 10-lookup limit, DMARC, DKIM, MTA-STS, BIMI, reverse DNS, email-auth grade A–F, propagation check on 8 public resolvers, change monitoring with webhook. $1 per 1,000 domains.

Check public email authentication DNS readiness for domains: MX, SPF, DMARC, DKIM selectors, BIMI, MTA-STS, TLS-RPT, risk labels, stable hashes, and useful-result pricing.

Domain Intelligence Lookup

obicodes/domain-intel

Full domain intelligence in one call. Get WHOIS registration data, DNS records, SSL certificate status, IP geolocation, ASN, mail provider detection, and an actionable email security score (SPF, DMARC, MX). Built for developers, security teams, agencies, and growth teams.

Enrich domains with RDAP registration dates, registrar, status flags, nameservers, DNS records (A/AAAA/MX/TXT/SPF/DMARC/CAA) & TLS certificate details. By Physea Labs · Liminal. 90% OFF first week!

Check thousands of domains in one run: registrar, creation & expiry dates (RDAP/WHOIS), DNS records (A, MX, NS, TXT, CAA), SSL certificate expiry, and SPF/DKIM/DMARC email security score. No personal data, no proxies.