Cyber-Kit.com

300 online tools for SEO, security, productivity, and daily tasks.

Subdomain Finder

Audit web security with Subdomain Finder - detect misconfigurations, leaks, and risk indicators before they become incidents.

Please solve the captcha first.
Subdomain Finder helps developers, pentesters, and IT teams run quick security checks directly in the browser. Validate headers, certificates, exposed services, and protocol behavior with actionable findings for hardening. Use it for routine security hygiene, pre-launch reviews, and troubleshooting suspicious behavior.

Contact

Missing something?

Feel free to request missing tools or give some feedback using our contact form.

Contact Us