Server Signature Test

Detect server software, versions, and technology stack from HTTP headers to identify security risks

Server Detection
Risk Assessment
Security Recommendations
What is Server Signature Testing?

Server signature testing identifies HTTP headers that reveal server software, versions, and technology stack. This information can help attackers identify vulnerabilities, so it's important to hide or obfuscate these headers.

Server Signature Analyzer

Enter a website URL to detect server signatures, identify information disclosure risks, and get security recommendations.

Tool Features

Comprehensive server signature detection with security risk assessment

Server Signature Detection

Identify server software, versions, and technology stack from HTTP headers

Risk Assessment

Evaluate security risks from information disclosure

Security Recommendations

Get actionable recommendations to hide server information

Comprehensive Analysis

Analyze all server-revealing headers and technology indicators

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Frequently Asked Questions

A Server Signature Test analyzes HTTP response headers to detect server software, versions, and technology stack information. This helps identify security risks from information disclosure that could help attackers identify vulnerabilities.

Server signatures reveal information about your server software and versions, which can help attackers identify known vulnerabilities. Testing helps you identify and remove these information disclosure risks to improve your security posture.

Common headers that reveal server information include: Server (web server software), X-Powered-By (application framework), X-AspNet-Version (ASP.NET version), X-Runtime (Ruby on Rails), and other technology-specific headers.

Yes. The Server Signature Test tool is completely free for everyone to use.

The method depends on your server software. For Apache, you can use ServerTokens and ServerSignature directives. For Nginx, you can hide the Server header. For application frameworks, check their documentation for removing X-Powered-By and similar headers.

Yes. You can test any publicly accessible website by entering its URL. The tool will analyze the HTTP headers returned by the server.

The risk level is calculated based on whether version information is disclosed. Version disclosure (e.g., 'Apache/2.4.41' or 'PHP/7.4.3') is marked as CRITICAL/HIGH risk because it helps attackers identify vulnerabilities. Server names without versions (e.g., just 'Apache' or 'nginx') are marked as LOW risk and are relatively safe, though hiding them entirely is still recommended for maximum security.

Yes, showing only the server name (like 'Apache' or 'nginx') without version information is relatively safe and marked as LOW risk. However, for maximum security, it's still recommended to hide the Server header completely. Version disclosure (like 'Apache/2.4.41') is a serious security risk and should be removed immediately.

The X-Powered-By header should be removed completely for maximum security, even if it doesn't contain version information. While showing framework name without version is safer than showing version, it still discloses your technology stack which can help attackers. The tool will recommend removing this header regardless of whether version is present.