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Services

Threat Intelligence

Threat Intelligence & Dark Web Monitoring Brand & Domain Protection

Security Operations

Vulnerability Assessment & Penetration Testing Red Team Operations Incident Response & Compromise Assessment

Microsoft Security

Microsoft 365 & Entra ID Security Assessment Entra ID & Conditional Access Hardening Microsoft Defender XDR Deployment & Tuning Microsoft Sentinel & Managed Detection

Tools Labs Threat Intel About Contact Request assessment

Tool 16 · Domain

Subdomain finder

Discovers subdomains from public certificate transparency logs, the same way attackers do reconnaissance.

Domain

Privacy

Your query goes directly from your browser to the crt.sh certificate transparency search operated by Sectigo. crt.sh can be slow under load; retry if it times out.

Related

Security stack fingerprint Domain trust check Typosquat finder

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Continuous threat intelligence and adversary-led testing across your external surface, your identity layer and the criminal underground.

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Threat Intelligence

Threat Intelligence & Dark Web Monitoring Brand & Domain Protection

Security Operations

Vulnerability Assessment & Penetration Testing Red Team Operations Incident Response & Compromise Assessment

Microsoft Security

Microsoft 365 & Entra ID Security Assessment Entra ID & Conditional Access Hardening Microsoft Defender XDR Deployment & Tuning Microsoft Sentinel & Managed Detection

Company

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