What does the website security scanner check?

The security scanner checks SSL/TLS certificates, security headers (CSP, X-Frame-Options, HSTS, etc.), mixed content, suspicious JavaScript, technology versions, and common vulnerabilities like exposed admin panels and directory listings.

Is the security scanner free to use?

Yes, the website security scanner is completely free with no registration required. You can scan any website to identify security vulnerabilities and get actionable recommendations.

How is the security score calculated?

The security score (0-100) is calculated based on SSL certificate validity, presence of security headers, absence of mixed content, no suspicious scripts, up-to-date technologies, and lack of common vulnerabilities. Higher scores indicate better security.

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Network ToolsWebsite Security Scanner

Advanced Security Scanner

Website Security Test

Run a comprehensive website vulnerability scan to check SSL, security headers, suspicious scripts, and common exposure points with instant results.

SSL & TLS checksSecurity header scanMixed content detectionTechnology reviewFree security report

Security basics

Check HTTPS, certificates, and browser protection signals.

Technology context

See technologies and obvious risk indicators faster.

Practical scan

Useful for site reviews, launches, and routine checks.

What this website security scan shows

This page gives you a practical overview of a website's visible security posture, including certificate quality, important browser protections, suspicious script patterns, and common misconfiguration clues.

That makes it useful for developers, security teams, site owners, agencies, and anyone checking whether a website looks well configured from the outside.

Why it matters

Security issues often come from basic misconfigurations, so a fast scan can reveal problems worth fixing before they become bigger risks.

How Our Security Scanner Works

URL Submission

Enter the website URL you want to scan. Our system normalizes and validates the target domain.

SSL/TLS Analysis

Validates certificate authenticity, checks expiration dates, verifies issuer trust chain, and confirms TLS protocol versions.

Header & Content Scan

Analyzes HTTP security headers, detects mixed content, identifies suspicious scripts, and scans for common vulnerabilities.

Security Report

Generates comprehensive security score (0-100) with detailed findings and actionable recommendations to improve your website's security.

What Does This Security Scanner Check?

SSL/TLS Certificate Validation: Our website security test validates your SSL certificate status, checks expiration dates, verifies the certificate issuer's authenticity, and confirms you're using secure TLS protocol versions (TLS 1.2 or higher). This helps check if your website is safe from man-in-the-middle attacks caused by invalid or expired SSL certificates.

HTTP Security Headers Analysis: Our website vulnerability scan checks for essential HTTP security headers including Content-Security-Policy (CSP), X-Frame-Options, Strict-Transport-Security (HSTS), X-Content-Type-Options, Referrer-Policy, and Permissions-Policy.

Mixed Content Detection: The scanner identifies insecure HTTP resources loaded on HTTPS pages.

Suspicious Script Analysis: We detect obfuscated JavaScript code, external scripts from unknown or untrusted sources, and potentially malicious code patterns.

Technology Stack Detection: The tool identifies CMS platforms, frameworks, server software, and JavaScript libraries.

Vulnerability Indicators: Our scanner checks for common security misconfigurations including exposed admin panels, configuration files, directory listings, and default credentials.

Why Run a Website Security Test?

A comprehensive website security test helps you check if your website is safe from cyber threats and vulnerabilities.

Regular website vulnerability scans help you identify and fix security issues before attackers exploit them.

A strong security score (80+) indicates your website follows security best practices, while lower scores highlight specific areas requiring attention.

Common Website Security Issues We Detect

Missing Security Headers

Absence of CSP, HSTS, X-Frame-Options exposes your site to XSS attacks, clickjacking, and protocol downgrade attacks.

Expired SSL Certificates

Expired or invalid SSL certificates trigger browser warnings, damage user trust, and leave communications vulnerable to interception.

Mixed Content Warnings

Loading HTTP resources on HTTPS pages creates security holes and browser warnings.

Outdated Software

Running outdated CMS versions, plugins, or frameworks with known CVEs makes your site an easy target.

How to Improve Your Security Score

Implement HTTPS Everywhere

Install a valid SSL certificate, force HTTPS redirects, and ensure all resources load securely.

Configure Security Headers

Add Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy headers.

Keep Software Updated

Regularly update your CMS, plugins, themes, and dependencies.

Audit Third-Party Scripts

Review external JavaScript dependencies and remove unnecessary third-party scripts.

Frequently asked questions

What does the scan check?

It checks visible security signals like SSL, security headers, mixed content, suspicious scripts, and common misconfiguration clues.

Is this a full penetration test?

No. It is a website security scanner focused on visible issues and practical recommendations, not a full manual security audit.

Why can a site score lower than expected?

Missing headers, weak TLS setup, mixed content, exposed admin paths, or outdated-looking technologies can all reduce the score.

What should I use next?

DNS, HTTP headers, and website intelligence tools can help you investigate specific configuration details in more depth.

HTTP Header Checker Website Intelligence DNS Lookup