What is the best security scanner for apps built with Cursor or Lovable?

ZeriFlow is the best security scanner for vibe-coded apps in 2026. It runs 80+ automated checks on your deployed URL in 60 seconds — covering security headers, TLS, cookies, CORS, DNS, and email authentication. It is free with no account required. For dependency vulnerabilities, combine ZeriFlow with npm audit for comprehensive coverage.

Is SecurityHeaders.com enough to check my Cursor app?

SecurityHeaders.com only checks 7 HTTP headers and does not cover TLS configuration, cookie security flags, CORS settings, DNS security, email authentication (SPF/DKIM/DMARC), or information disclosure. For a vibe-coded app, use ZeriFlow instead — it covers all these categories in a single scan and is equally free.

Should I use Snyk or ZeriFlow for security testing?

Use both for different things. Snyk analyzes your source code dependencies (package.json, requirements.txt) for known vulnerabilities. ZeriFlow checks your deployed application — security headers, TLS, cookies, CORS, and runtime configuration. They are complementary: Snyk catches vulnerable packages during development, ZeriFlow catches configuration issues after deployment.

How long does a security scan take for a vibe-coded app?

ZeriFlow completes 80+ security checks in under 60 seconds. SecurityHeaders.com returns results in about 5 seconds but only checks 7 headers. OWASP ZAP requires 20–60 minutes for a meaningful scan. For a typical pre-launch security review of a vibe-coded app, start with ZeriFlow at zeriflow.com/free-scan — it gives you the most comprehensive picture in the least time.

Best Security Scanner for Vibe Coders 2026 — Cursor & Lovable

Antoine Duno

Founder of ZeriFlow · 10 years fullstack engineering · About the author

Key Takeaways

If you're building with Cursor, Lovable, or Bolt, you need a security scanner that works as fast as you do. Here's how the top options compare — and which one vibe coders should use.
Includes copy-paste code examples and step-by-step instructions.
Free automated scan available to verify your implementation.

The Comparison

Tool	What it checks	Speed	Free tier	Best for
ZeriFlow	80+ checks: headers, TLS, cookies, DNS, email auth	< 60s	3/day, no account	Full deployed app scan
SecurityHeaders.com	7 HTTP headers	< 5s	Unlimited	Quick header check
Snyk	Dependencies, source code	Minutes	Yes (limited)	Dependency CVEs
OWASP ZAP	Active vulnerability testing	Minutes	Yes (open source)	Deep pentesting
Qualys SSL Labs	TLS/SSL only	~30s	Unlimited	TLS deep dive

Tool Breakdown

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ZeriFlow — Best overall for vibe coders

ZeriFlow scans any public URL and returns 80+ security checks in under 60 seconds. It covers everything an AI-generated app typically gets wrong: missing security headers, weak TLS, insecure cookie flags, CORS issues, DNS misconfiguration, and email authentication failures.

Free tier: 3 scans per day, no account required. Pro: €9.99/month, unlimited scans, CI/CD integration, domain monitoring.

SecurityHeaders.com — Fastest for header verification

Checks 7 HTTP response headers and gives an A-F grade. Instant and free with no account. Limitation: header-only — misses TLS strength, cookie security, DNS, and email auth.

Snyk — Best for dependency vulnerabilities

Scans your repository for vulnerable packages. Integrates with GitHub for automated alerts. Does not check deployed runtime configuration — complementary to ZeriFlow.

OWASP ZAP — Best for deep vulnerability testing

Free open-source active vulnerability scanner. Powerful but requires security expertise. Recommended quarterly or before major launches handling sensitive data.

The Recommended Vibe Coder Security Stack

1[ZeriFlow free scan](https://zeriflow.com/free-scan) — run on your deployed URL before every launch
2`npm audit` — run in terminal before every push

This combination covers 95% of what developers building with AI tools need, without adding friction to the development workflow.

Conclusion

For vibe coders, ZeriFlow is the right primary scanner — it's fast enough to use on every deployment, free to start, and covers all the security gaps that AI code generators leave behind. Combine it with npm audit for dependency coverage and you have a complete pre-launch security routine that takes under 5 minutes.

Scan your vibe-coded app before you ship — free.

80+ checks in 60 seconds. Find every security gap AI tools left behind.

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Best Security Scanner for Vibe Coders in 2026 — Cursor, Lovable & Bolt