Web app security testing, built for how you ship
Scan any site for exposed secrets, misconfigs, and real vulnerabilities in under 30 seconds — including everything AI coding tools miss. Free fast scan, no signup.
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What is SteelSuit?
SteelSuit is an external security scanner for deployed web apps. You point it at a domain you own and it runs an automated black-box scan from the outside — no agent to install, no source-code access — then returns a graded A–F report covering TLS, HTTP security headers, secrets exposed in JavaScript bundles, reachable sensitive paths, and real vulnerabilities. A fast scan takes under 30 seconds and is free with no signup; deeper scans, scheduled monitoring, and a REST API with webhook, email, and Slack delivery unlock once you sign in. It's built for developers and agencies shipping quickly — especially teams deploying AI-generated, "vibe-coded" apps that traditional code review never sees.
Full-stack security coverage
From DNS to deep scan — automated, actionable, and always up to date.
AI-Specific Threat Detection
Identifies vulnerabilities unique to LLM-generated code patterns and logic flaws.
Instant Domain Scanning
Enter a URL to get a comprehensive security report of endpoints in seconds.
Vercel Integration
Seamlessly integrate automated scanning directly into your Vercel deployment pipeline.
Detailed Reports
Actionable insights with clear remediation steps tailored for generated code blocks.
API Access
Automate scans and integrate results into your own dashboards with our robust API.
Continuous Monitoring
Stay protected against new threats with scheduled, automated background scans.