Subdomain Scanner

Hidden subdomains are the #1 source of data breaches. Discover staging servers, admin panels, and forgotten services that attackers exploit.

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โœ“ No signup required ยท โœ“ Results in 60 seconds ยท โœ“ 100% free basic scan

Why Subdomain Discovery is Critical for Security

Organizations often don't know how many subdomains they have. Forgotten staging servers, old APIs, and test environments become easy targets because they lack the security protections of production systems.

What We Find

Frequently Asked Questions

How does subdomain scanning work?

We use certificate transparency logs, DNS brute forcing, search engine dorking, and public data sources to enumerate all subdomains associated with a domain.

Why do subdomains get hacked?

Subdomains often run outdated software, have weaker security configurations, and are forgotten by IT teams. Attackers specifically target them because they're the path of least resistance.

How many subdomains does a typical company have?

Large organizations frequently have 500-5,000+ subdomains. Even small businesses often have 10-50 subdomains they've forgotten about.

Every day you wait is another day hackers have the advantage

Scan your website now โ€” free, instant, no signup.

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