Subdomain Finder

Discover public subdomains for security testing and domain management. Find subdomains using DNS queries and certificate transparency logs.

Subdomain Scan

Enter a domain name to discover its public subdomains

Domain

Enter a domain name without protocol (e.g., example.com, not https://example.com)

Scan Type

Basic Scan (Faster, checks common subdomains)

Advanced Scan (Slower, includes certificate transparency logs)

Ethical Usage Notice

This tool is intended for legitimate security testing and domain management purposes. Only use it on domains you own or have permission to test. Unauthorized scanning may violate terms of service or laws in some jurisdictions.