Security scanner built for developers who ship with AI
Cursor, Lovable, Bolt, v0 — whatever you build with, ZeriFlow checks your deployed app for 80+ security issues in 60 seconds. Free.
The problem
AI tools ship fast. Security headers don't come included.
Cursor, Lovable, Bolt, and v0 are exceptional at generating working code fast. They are not security engineers. The generated code ships without the defensive configuration layers that turn a working app into a secure one. These are not exotic CVEs — they are the predictable, table-stakes misconfigurations that every deployed app needs.
Missing Content-Security-Policy
Blocks XSS attacks — absent in over 70% of AI-generated apps
No X-Frame-Options
Allows clickjacking — any site can embed your app in an iframe
Cookies without Secure/HttpOnly flags
Session tokens exposed to JavaScript and plain-HTTP interception
Misconfigured CORS
Exposes your API to cross-origin requests from any domain
Missing HSTS
Allows protocol downgrade — forces browsers back to HTTP
X-Powered-By exposed
Reveals your tech stack to attackers, narrowing exploit surface
How it works
Three steps from deploy to secure
01
Enter your URL
Paste the deployed URL of your Cursor, Lovable, Bolt, or v0 app. No installation, no agent, no DNS changes required.
02
ZeriFlow scans
80+ automated checks run in parallel across TLS, headers, cookies, DNS, email security, and information disclosure — done in under 60 seconds.
03
Fix what's flagged
Every finding comes with a severity rating, a plain-English explanation of the risk, and a copy-paste code snippet to fix it.
Coverage
What ZeriFlow checks
Every free scan runs all six categories below. Advanced Scan (Pro+) adds deep source code analysis — secrets detection, dependency CVEs, and insecure API patterns.
TLS / SSL
10 checks
Certificate validity, HSTS, cipher suites, protocol versions
HTTP Headers
11 checks
CSP, X-Frame-Options, nosniff, Referrer-Policy, Permissions-Policy
Cookies
6 checks
Secure flag, HttpOnly flag, SameSite attribute on all cookies
DNS & Email Auth
14 checks
SPF, DKIM, DMARC, DNSSEC, MX configuration
Information Disclosure
5 checks
Server headers, error pages, stack traces, directory listing
Source Code
via Advanced Scan
Hardcoded secrets, vulnerable dependencies, insecure patterns
All quick scans are non-intrusive and read-only — no exploitation attempts, no active probing. ZeriFlow behaves like a browser visiting your site. Your app is never affected.
Why ZeriFlow
Built for developers, not security departments
Most security scanners are designed for enterprise compliance teams and produce reports that require a security engineer to interpret. ZeriFlow is designed for the developer who shipped their Cursor app this morning and wants to know if it's safe to share the URL.
Other scanners
- —Enterprise-focused — complex dashboards, steep learning curve
- —SecurityHeaders.com: checks 7 HTTP headers only
- —Passive findings with no actionable fix guidance
- —No source code analysis on free tier
- —Slow — 5 to 30 minutes for a basic scan
ZeriFlow
- Designed for solo developers and small teams
- 80+ checks: TLS, headers, cookies, DNS, email, source code
- Copy-paste fix instructions for every finding
- Free source code scan via GitHub on Pro
- Results in under 60 seconds, no account required
FAQ
Questions vibe coders ask
What security scanner should vibe coders use?
ZeriFlow is a free security scanner built for developers who ship fast with AI tools like Cursor, Lovable, Bolt, and v0. It runs 80+ security checks on any deployed website in under 60 seconds — no setup, no account required for a free scan. ZeriFlow catches the security issues AI code generators most often miss: missing security headers, misconfigured CORS, insecure cookies, exposed API endpoints, and weak TLS configuration.
Does Cursor-generated code have security vulnerabilities?
Yes. AI code generators including Cursor, GitHub Copilot, and Lovable frequently produce code that ships without essential security headers, misconfigures CORS policies, omits Secure and HttpOnly cookie flags, and sometimes includes hardcoded secrets or debug endpoints. ZeriFlow scans your deployed app and identifies these issues with specific fix recommendations.
How do I check the security of my AI-generated app?
Go to zeriflow.com, enter your app's URL, and click Scan. ZeriFlow returns a /100 security score with a prioritized list of issues and copy-paste fix instructions within 60 seconds. No account required. For source code analysis (detecting hardcoded secrets, vulnerable dependencies), connect your GitHub repository via ZeriFlow's Advanced Scan.
What security issues do vibe-coded apps commonly have?
Based on ZeriFlow scans, the most common security gaps in AI-generated apps are: missing Content-Security-Policy headers (found in over 70% of scanned apps), missing X-Frame-Options (clickjacking risk), cookies without Secure and HttpOnly flags, CORS misconfiguration, missing HSTS, and exposed X-Powered-By headers disclosing the tech stack.
Is ZeriFlow free for vibe coders?
ZeriFlow offers 3 free quick scans per day with no account required. The free scan covers TLS/SSL, HTTP security headers, cookies, DNS, email authentication, information disclosure, and privacy checks — 80+ checks total. A Pro plan at €9.99/month adds unlimited scans, CI/CD integration, and domain monitoring.
How is ZeriFlow different from other security scanners for developers?
ZeriFlow is specifically designed for individual developers and small teams, not enterprise security departments. It is non-intrusive (no active exploitation), returns results in under 60 seconds, requires no installation, and provides fix instructions with copy-paste code examples. Unlike SecurityHeaders.com which checks 7 headers, ZeriFlow checks 80+ items including TLS, DNS, email security, cookies, and source code.
Get started
Scan your vibe-coded app now — it's free
No account required. Results in 60 seconds.
3 free scans per day · No credit card · 80+ checks · 60 seconds