100 free audits for startups

Claim your free AI security audit

100 free AI-powered security assessments for YC founders & startup operators. Real findings, real exploit chains, real fix code — delivered privately.

What we test (our scope)

Security headers & TLS configuration
DNS records & email security (SPF/DKIM/DMARC)
Path & file enumeration (common paths only)
Form & API endpoint injection testing
Input fuzzing (LFI, SSRF, XSS — non-destructive probes)
Payment & AI endpoint probing (if applicable)
Technology fingerprinting & version-specific CVE check
Attack chain analysis & remediation guidance

All testing is non-destructive. We may send test payloads to forms and APIs, but we never modify, delete, or exfiltrate your data. No DoS, no brute-forcing, no lateral movement. Full testing scope →

Your details

Full name *

Company *

Work email *

Target

Primary website *

Ownership verification

We verify you control the domain before any testing begins.

Authorization & consent

I authorize Cestulab Co., Limited d/b/a Prowl Security to perform a non-destructive security assessment on the domain(s) listed above, as described in the Security Assessment Authorization. I confirm I am authorized to grant this permission. *I understand findings are delivered privately to me only and will not be shared with any third party without my explicit consent. *I consent to anonymized, non-identifiable statistics from my audit appearing in a published research report. No company name, domain, or site-specific details will ever be disclosed. *

Our commitments

Non-destructive only. No data modification, deletion, or exfiltration.
Findings stay private to you unless you consent otherwise.
Only anonymized aggregate data in any public research.
Testing begins only after ownership is verified.

A timestamped confirmation email will serve as your authorization record. Terms & Privacy