Free Website Vulnerability Scanner

Scan any website for common security vulnerabilities

Enter a URL to scan for common web security issues. This tool fetches the page, analyzes HTTP response headers, detects server technologies from meta tags and headers, and identifies potential security misconfigurations — giving you a quick overview of your website's security posture.

Trusted by teams at

Ramp
Pilot
Vercel
Stripe
Better Auth
SST
OpenCode

How it works

How Website Vulnerability Scanner works

01

Enter a URL

Paste any website URL. We automatically add HTTPS if needed and follow redirects to reach the final page.

02

Analyze the response

We fetch the page and inspect HTTP headers, HTML meta tags, and response characteristics to detect technologies, frameworks, and potential security issues.

03

Review findings

Get a comprehensive report covering detected technologies, security header gaps, information leakage, and specific recommendations to improve your security posture.

Features

What Website Vulnerability Scanner checks

Technology fingerprinting

Detects web servers, frameworks, CMS platforms, and programming languages from X-Powered-By headers, generator meta tags, and other response indicators.

Security header assessment

Checks for critical security headers like CSP, HSTS, X-Frame-Options, and X-Content-Type-Options that protect against common web attacks.

Information leakage detection

Identifies headers and response details that expose your technology stack, server versions, and internal configuration to potential attackers.

Cookie security analysis

Examines response cookies for security flags like HttpOnly, Secure, and SameSite that prevent session hijacking and cross-site request forgery.

Use cases

Who should use the free Website Vulnerability Scanner

Developers

Quick-check your web application's security posture before deployment. Catch missing headers, exposed version numbers, and misconfigured cookies early.

Security Engineers

Run rapid assessments of web properties during security reviews. Get a technology fingerprint and surface-level vulnerability check in seconds.

Penetration Testers

Use as a first-pass reconnaissance tool during engagements. Identify the technology stack, security posture, and low-hanging fruit before deeper testing.

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FAQ

Frequently asked questions

Everything you need to know about the free Website Vulnerability Scanner.

Go beyond Website Vulnerability Scanner

This free Website Vulnerability Scanner checks a handful of things. Maced's AI pentest checks thousands.

Get a full autonomous penetration test — including OWASP Top 10, authentication flaws, business logic errors, API security, and more — with a compliance-ready report in hours.

Proof of exploit on every finding · SOC 2 & ISO 27001 compatible