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Security Score
Detect critical vulnerabilities, misconfigurations, and security gaps across your web infrastructure — instantly and for free.
🔍 Run Scan
Enter your target URL and configure scan parameters. Only test websites you own or have explicit written permission to test.
🛡️ Capabilities
Comprehensive coverage of the OWASP Top 10, CWE vulnerabilities, and modern web attack vectors.
Verify certificate validity, supported protocols, cipher suites, HSTS, and detect downgrade attack vectors like SSLv3 and TLS 1.0.
Check for X-Frame-Options, Content-Security-Policy, X-XSS-Protection, HSTS, Referrer-Policy and 10+ more critical HTTP headers.
Test reflected, stored, and DOM-based cross-site scripting vectors using real payload injection across URL params and form fields.
Probe for SQLi vulnerabilities including error-based, blind boolean, time-based blind, and UNION-based injection techniques.
Discover open ports and identify running services. Flag dangerously exposed services like Telnet, FTP, and SMB.
Detect wildcard origins, missing credentials flags, and insecure cross-origin resource sharing policies that leak sensitive data.
Analyse cookies for HttpOnly, Secure, SameSite flags, expiration policies, and detect session fixation vulnerabilities.
Test SPF, DMARC, DKIM records, DNS zone transfer vulnerabilities, subdomain takeover risks, and DNSSEC validation.
Probe for path traversal, directory listing, backup file exposure, and sensitive file access vulnerabilities on the server.
⚙️ Process
Our engine follows an industry-standard penetration testing methodology in four structured phases.
Passive and active information gathering — DNS records, WHOIS, technology fingerprinting, open ports, and server banners.
Discover attack surface: exposed endpoints, directories, subdomains, HTTP methods, and application structure mapping.
Systematic testing across 15+ modules: XSS, SQLi, CORS, headers, SSL, cookies, directory traversal, and more.
Detailed findings with severity ratings, CVSS scores, exploitation descriptions, and remediation recommendations.
📖 About
Website penetration testing — commonly called PEN testing — is a proactive, authorised simulation of real-world cyberattacks against a web application or server environment. Rather than waiting for malicious actors to exploit weaknesses, security professionals use controlled attack techniques to identify and remediate vulnerabilities before they can be leveraged. It is a cornerstone practice in any mature cybersecurity programme.
Modern web applications face relentless threat landscapes: SQL injection, cross-site scripting (XSS), broken authentication, CORS misconfigurations, insecure cookies, missing HTTP security headers, and outdated SSL/TLS configurations are among the most frequently exploited vulnerabilities listed in the OWASP Top 10. A thorough PEN test systematically probes each of these vectors, providing quantified risk intelligence that generic automated scanners rarely achieve.
The benefits of regular website PEN testing are substantial. Firstly, it surfaces hidden security gaps that static code reviews and automated scans often miss. Secondly, it validates that existing security controls — firewalls, WAFs, authentication mechanisms — are actually functioning as intended. Thirdly, it provides measurable evidence of security posture for compliance requirements such as PCI-DSS, ISO 27001, SOC 2, and GDPR. Fourthly, it prioritises remediation efforts through severity-based risk scoring, allowing development and security teams to focus resources where they matter most.
Using our free advanced online PEN testing tool, you can instantly analyse your website against 15+ security modules including SSL/TLS checks, HTTP security header validation, XSS and SQL injection probing, CORS policy analysis, open port detection, cookie security audits, and DNS security validation. Each finding is accompanied by a clear severity rating, CVSS-aligned score, detailed exploitation context, and actionable remediation guidance. Whether you are a developer, site owner, or security professional, regular PEN testing is essential to maintaining trust, protecting user data, and staying ahead of evolving cyber threats.
❓ FAQ
Website penetration testing is a simulated cyberattack against your web application designed to find exploitable security vulnerabilities before real attackers do. It covers application-layer attacks, network-level flaws, configuration issues, and logic vulnerabilities.
Yes, this tool is completely free to use. It is intended for educational purposes and legitimate security auditing of websites you own or have explicit written permission to test.
No. Penetration testing must only be conducted on systems you own or have received explicit written authorisation to test. Unauthorised testing is illegal under computer misuse laws in most jurisdictions, including the UK Computer Misuse Act and the US CFAA.
The scanner covers SSL/TLS issues, missing security headers, XSS, SQL injection, CORS misconfigurations, insecure cookies, open ports, DNS vulnerabilities, directory traversal, HTTP method exposure, clickjacking, CMS detection, and information disclosure.
Best practice recommends running a PEN test at least quarterly, after major code deployments, infrastructure changes, or following any security incident. High-traffic e-commerce and financial sites often run monthly scans.
CVSS (Common Vulnerability Scoring System) is an open framework for communicating the characteristics and severity of software vulnerabilities. Scores range from 0 to 10, with 10 being most severe. We use CVSS v3.1 ratings for all findings.
Go beyond PEN testing — discover our full suite of free security analysis, SEO, and AI-powered tools built to protect and optimise your digital presence.