Find subdomains of a Domain
The Subdomain Finder from binsec.tools is a fast and reliable tool for discovering subdomains of a target domain. It aggregates results from multiple data sources to give a comprehensive view of a domain's substructure. It's especially useful for reconnaissance, bug bounty hunting, and penetration testing, helping users quickly map out potential attack surfaces. The tool is simple to use and focuses on delivering results without unnecessary complexity. The Subdomain Finder of binsec.tools uses a multi-pronged approach to uncover subdomains:
Accesses the CertWatch database — a curated collection of public SSL/TLS certificates — where subdomains often appear in certificate metadata.
Performs systematic DNS lookups using a predefined subdomain wordlist to identify commonly used or default subdomains.
Sends targeted search queries to Google to discover subdomains that appear in public search results but may be missed by traditional tools.
Go to SubDomainFinder
Pentesting
Tools
On binsec.tools, you’ll find free online tools for penetration testing – the same ones used by the binsec group in real-world pentests. The publicly available tools are primarily designed to gather information and enrich it with additional data. Check them out!
Free
No Ads
No user tracking
Pentesting
Tools
On binsec.tools, you’ll find free online tools for penetration testing – the same ones used by the binsec group in real-world pentests. The publicly available tools are primarily designed to gather information and enrich it with additional data. Check them out!
Free
No Ads
No user tracking
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