Free Website Security Scan
Check your website's security in under 60 seconds. No credit card. No domain verification. No setup. Get a comprehensive report with 80+ checks across 12 categories.
Sign in with Google or GitHub to start your scan. Your first scan is free.
What You Get With Every Free Scan
Security Score
Clear /100 score of your overall security posture
80+ Checks
Individual pass, warn, and fail status for every check
Fix Recommendations
Actionable steps to fix every issue found
AI Analysis
Contextual analysis that eliminates false positives
What Does the Scan Check?
TLS & HTTPS
Certificate validity, protocol versions, cipher suites, HSTS
Security Headers
CSP, X-Frame-Options, Referrer-Policy, Permissions-Policy
Cookie Security
Secure, HttpOnly, SameSite flags and cookie scoping
Information Disclosure
Server fingerprinting, exposed files, directory listings
DNS & Network
DNSSEC, CAA records, CDN detection
Email Security
SPF, DKIM, and DMARC record validation
Content Security
Mixed content, subresource integrity, form security
Privacy
Cookie consent, trackers, privacy policy presence
Performance
Core Web Vitals, resource optimization, caching
Accessibility
Security-relevant accessibility checks
Best Practices
robots.txt, sitemap, meta tags configuration
Network Security
CDN usage, IP reputation, open port detection
Frequently Asked Questions
How long does the scan take?
Under 60 seconds for a quick scan. Results are displayed immediately after the scan completes.
Do I need to install anything on my server?
No. ZeriFlow scans externally. There's nothing to install, no agents, no code snippets.
Is the scan safe for my website?
Completely. ZeriFlow performs non-intrusive, read-only checks only. Your website remains completely untouched.
Can I scan any website?
You can scan any publicly accessible website. The scan only checks what's visible from the outside.
How often should I scan?
We recommend scanning after every deployment and at least weekly to monitor for configuration drift.
What if my score is low?
Don't panic. Most websites score 30-50/100 on their first scan. Focus on critical and high-severity findings first.
ZeriFlow's free website security scan runs 80+ non-intrusive checks across 12 security categories in under 60 seconds. Every scan covers TLS/HTTPS configuration, HTTP security headers, cookie security, information disclosure, DNS and network security, email authentication (SPF, DKIM, DMARC), content security, privacy compliance, performance, and accessibility.
Unlike other website security scanners that blur results behind a paywall, ZeriFlow shows you everything: every check with its status, a clear explanation of the issue, and actionable fix recommendations. The AI-powered analysis engine understands context, eliminating the false positives that make other scanners frustrating to use.
Need deeper analysis? ZeriFlow's advanced scan combines URL security testing with source code auditing. Connect your GitHub repository or upload a ZIP file for a comprehensive vulnerability assessment. View our pricing plans for unlimited scans, PDF exports, and AI-powered explanations.