Bulk Domain Health Checker – DNS, MX, SPF, DMARC & SSL Expiry

Check thousands of domains at once: available or registered, plus registrar, creation and expiry dates, days until expiry, and nameservers. Check a name across many TLDs, or find domains expiring soon. Uses official RDAP, the modern WHOIS. Free.

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.

Email Domain Blacklist Checker

trovevault/email-domain-blacklist-checker

Check any domain against 15 email blacklists (Spamhaus, SURBL, SpamCop, Barracuda and more) and validate SPF, DMARC and MX records. No API keys required. Export data, run via API, schedule and monitor runs, or integrate with other tools.

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.

🚙📝👨‍⚕️ AutoScout24 Listing Health Checker

3x1t/autoscout24-listing-health-checker

Check which listings are no longer active/available on AutoScout24 thanks to this simple utility.

Check email syntax, disposable and role accounts, DNS/MX, WHOIS, SSL, SPF/DMARC/DKIM, public breach metadata, and company-name guesses. Bulk CSV, domain, and email inputs. Username scanning is retired. PPE: $0.001 start plus $0.01 per target after a one-time five-target allowance.

Bulk domain intelligence: registrar, age and expiry via official RDAP (structured WHOIS), SSL certificate expiry and trust, DNS records (A/AAAA/MX/NS/TXT), plus clear warnings like "expires in 30 days". Registrant contact details are never extracted - registry facts only.

Check SSL/TLS certificates for any website: expiration date, issuer, subject, hostname match (SNI), chain/authorization status, and common HTTPS misconfigurations. Useful for SEO audits, security checks, and uptime monitoring.

Domain Age Checker

onescales/domain-age-checker

Bulk domain age lookup tool. Get registration date, expiration date, and domain history for hundreds of domains at once. Supports .com, .co.uk, .io, .ai, and 100+ TLDs.

Bulk domain lookup from official sources. Registrar, creation date, age and expiry date via RDAP, the modern WHOIS; A, MX, NS, TXT, SPF and DMARC records; and the SSL certificate issuer and days to expiry. $1.50 per 1,000 domains.