Domain Monitor: Expiry, DNS & Email Security Alerts

Expired & Dropped Domains — Daily Feed

nogards95/domain-drop-monitor-scraper

A daily machine-readable feed of expired and dropped domain names for threat-intelligence, brand-protection, and domain-investing workflows. Up to 10,000 fresh domains per feed per day, deduplicated, filterable by TLD, ready in seconds. No login, no API key.

Full domain security audit in one call: SSL/TLS, DNS, SPF/DKIM/DMARC, security headers, WHOIS, blacklist, tech stack — PLUS subdomain-takeover risk and public S3-bucket exposure detection, which no other domain-audit tool checks. Returns a 0-100 health score + fix list. No API key, no login.

Registration and expiry dates via RDAP.

Domain Availability, Expiry, WHOIS, DNS, IP, ASN, 70+ TLD

datascoutapi/DomainDaddy

Domain availability and expiry dates, WHOIS & RDAP data, DNS (A, MX, NS, TXT), IP geolocation and ASN details, calculates domain age, and supports batch processing. Supports 70+ TLDs, handles errors gracefully, and delivers clean, structured JSON output.

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 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.

Domain Lead Qualifier – WHOIS + DNS Email-Readiness Score

emastra/domain-intelligence

Upload a list of domains → get age, registrar, MX/SPF/DMARC status, TLS info, hosting org, and a green/red “email-ready lead score.” Perfect for SDRs, lead-gen agencies, list vendors, and growth teams who don’t want to waste time emailing dead domains.

Typosquat & Lookalike Domain Detector with Threat Signals

cottony_brittlegill/domain-typosquat-detector

Find typosquatted and lookalike domains impersonating your brand: typo, homoglyph, bitsquat, TLD-swap and combosquat variants, checked against live registries and enriched with registrar, DNS, MX and TLS data to separate real threats from parked domains. Unregistered variants are never charged.

Brand protection monitoring that checks your brand names against every domain actually registered in the last 24 hours plus new TLS certificates. Detects typosquats, homoglyph/IDN impersonation and combosquatting, and scores each domain 0-100 by phishing risk.

Bulk domain enrichment: A/AAAA/MX/NS/TXT records, registrar and domain age via RDAP, SSL certificate issuer and expiry, plus mail provider, SPF and DMARC detection. No API keys required.