Reduce your exposure to XSS attacks.
✓Free website security scanner - no account required
Works seamlessly with all your favorite AI coding tools
See Your Security in Action
Explore our intuitive interface designed to give you complete visibility into your application's security health
example.com
Scan completed 2 hours ago
✓ Content Security Policy configured
✓ Strict Transport Security enabled
✓ TLS 1.3 supported
⚠ CORS policy allows wildcard origin
Comprehensive Security Diagnostics
Our website security scanner analyzes critical security vectors that impact your web app's security posture
HTTPS & Redirects
Automated verification of SSL/TLS configuration and HTTP to HTTPS redirects
Security Insight
83% of web apps still allow HTTP access, exposing users to man-in-the-middle attacks
Security Headers
Comprehensive analysis of essential security headers including CSP, HSTS, and more
Security Insight
Missing security headers account for 40% of preventable XSS and clickjacking vulnerabilities
Cookie Security
Automated validation of Secure, HttpOnly, and SameSite flags
Security Insight
65% of web apps expose session cookies without proper security flags, risking account hijacking
Tech Stack Detection
Intelligent detection of your tech stack with security recommendations
Security Insight
Outdated frameworks are responsible for 70% of known vulnerabilities in modern web apps
Why Website Security Scanners Matter
Modern web apps face evolving security threats. Website security scanners help you stay ahead.
Of Security Breaches
Are caused by misconfigurations that automated scans can detect. Most vulnerabilities are preventable with proper security headers and configurations.
Faster Detection
Our website security scanner detects issues 3x faster than manual audits. Catch vulnerabilities before they become incidents.
Average Breach Cost
The average cost of a data breach for web applications. Early detection through automated diagnostics significantly reduces risk.
How Our Website Security Scanner Works
Get comprehensive security insights in minutes, not days
Add Your Web App
Simply provide your web app URL. Our system automatically normalizes and validates the endpoint.
No complex setup required. Works with any publicly accessible web application.
Automated Analysis
Our diagnostic engine performs comprehensive security checks across multiple vectors simultaneously.
Analyzes HTTPS configuration, security headers, cookie policies, and tech stack in parallel.
Actionable Insights
Receive detailed reports with severity ratings, impact analysis, and step-by-step remediation guidance.
Each finding includes specific recommendations tailored to your tech stack and infrastructure.
Security Best Practices We Validate
Our diagnostics align with OWASP Top 10 and modern security frameworks
Transport Security
- Enforce HTTPS-only connections
- Implement HSTS with proper max-age
- Redirect all HTTP traffic to HTTPS
- Validate SSL/TLS certificate configuration
Application Security Headers
- Content-Security-Policy (CSP) implementation
- X-Frame-Options to prevent clickjacking
- X-Content-Type-Options to prevent MIME sniffing
- Referrer-Policy for privacy control
Session Management
- Secure cookie flags (Secure, HttpOnly, SameSite)
- Proper session token handling
- Session timeout configurations
- CSRF protection mechanisms
Infrastructure Security
- Server header information disclosure
- Technology stack version detection
- Security update recommendations
- Configuration best practices
Explore Our Resources
Security Guide
Comprehensive guide to securing AI-built websites and applications
Security Headers
Learn about essential HTTP security headers and implementation
TLS Security Topics
Complete guide to TLS certificates, protocols, and encryption
Security Guides
Step-by-step guides for securing your web application
Blog
Security insights, best practices, and industry news
About Us
Learn about zdelab and our mission