Real Subdomain Finder

Subdomain Finder

happitap/subdomain-finder

Subdomain Finder is a high-speed intelligence tool that uncovers subdomains for any target domain using Certificate Transparency (CT) logs. Unlike traditional brute-force tools, it requires no heavy traffic and provides results in seconds.

Subdomain Finder

automation-lab/subdomain-finder

This actor discovers subdomains by querying certificate transparency logs via crt.sh. It finds all SSL/TLS certificates ever issued for a domain, extracting unique subdomain names. This passive reconnaissance technique requires no direct scanning.

Discover subdomains for any target via passive OSINT sources. Ideal for security bug bounties and attack surface mapping.

Look up WHOIS data, DNS records, SSL certificates, and tech stack for any domain. Bulk domain research for lead generation, SEO audits, domain investing, and competitive intelligence. Uses RDAP, DNS-over-HTTPS, Certificate Transparency, and web WHOIS providers.

Dns Lookup Actor

balathon/dns-lookup-actor

An Apify Actor that performs DNS lookups for given domain names and record types, with optional custom DNS server support.

Email Validation API

gentle_cloud/email-validation-api

Validate email addresses with syntax checks, DNS MX record lookup, disposable email detection, and role-based address detection. No API key required.

Check domain availability, WHOIS records, DNS records, and SSL certificates. Supports bulk domain checking.

Query DNS records for any domain — A, AAAA, MX, NS, TXT, CNAME, SOA, and more. Essential for domain intelligence and security research.

Organization Registered Domain & Subdomain Scraper

lofomachines/organization-registered-domain-subdomain-scraper

Discover all domains registered by any organization by company domain. Find related domains, subdomains, registration dates, expiration dates, and registrar information. Perfect for brand protection, competitive analysis, M&A due diligence, and security research.