Developer Tools/ Website Security Scanner

Website Security Scanner

Check if any website is safe before visiting. Scans for malware, SSL certificate, blacklist status and suspicious patterns. Free — no sign-up required.

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How to Use

1

Enter Website URL

Type the full URL of the website you want to scan — include https://.

2

Start Scan

Click Scan to analyze the website's security and technical configuration.

3

View Report

See detailed results covering SSL, headers, technologies and security issues.

4

Take Action

Use the findings to improve your website's security posture.

Website Security Guide

Every website has a security posture — how well it is configured to resist attacks and protect visitors. Many websites have easily preventable security gaps: missing security headers, expired SSL certificates, outdated software versions or information disclosure that helps attackers. Our Website Scanner checks these common issues quickly, giving you actionable results without needing to be a security expert.

What the Scanner Checks

SSL certificate status is the first check — is the certificate valid, not expired and correctly configured? HTTPS everywhere — does the site redirect HTTP to HTTPS properly? Security headers are checked next: HTTP Strict Transport Security (HSTS), Content Security Policy (CSP), X-Frame-Options, X-Content-Type-Options and others. These headers prevent many common web attacks including clickjacking and content injection.

Technology detection identifies which software, frameworks and server technology the site uses — this helps identify potentially outdated or vulnerable components. Redirect chains are checked — excessive redirects slow down websites and affect SEO. Response time gives a basic performance indicator.

Why Security Headers Matter

Security headers are HTTP response headers that browsers use to enhance security. X-Frame-Options prevents your site from being embedded in iframes on other sites (preventing clickjacking attacks). Content-Security-Policy restricts which resources the browser can load, preventing cross-site scripting (XSS). X-Content-Type-Options prevents MIME type sniffing attacks. These headers are free to implement, require only server configuration and provide significant protection.

SSL Configuration

SSL (now TLS) certificates encrypt traffic between visitors and your website. An invalid, expired or misconfigured certificate causes browsers to show security warnings that drive away visitors and affect trust. Beyond having a certificate, proper configuration matters — supporting only current protocol versions (TLS 1.2+), using strong cipher suites and proper certificate chain configuration.

Using Scan Results

Security scans produce findings with varying severity levels. Critical findings require immediate attention — expired certificates, HTTP without HTTPS. High findings should be addressed quickly — missing essential security headers. Medium findings are worth fixing — information disclosure, non-optimal configuration. Low findings are improvements but not urgent. Use findings to prioritize security improvements rather than trying to address everything simultaneously.

Why Use This Tool?

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Security Analysis

SSL, headers, technologies and vulnerabilities checked.

Fast Scan

Comprehensive results in seconds.

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Detailed Report

Clear findings with severity levels and explanations.

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Always Free

No account needed. Scan unlimited websites free.

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Frequently Asked Questions

Scanning your own website is entirely legal and recommended practice. Scanning third-party websites to identify publicly visible information (like security headers and SSL) is generally legal as it replicates what any browser does. Do not attempt to exploit any findings on third-party sites.