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Server Signature

Checks for exposed server version headers which can be a security risk.

What is this check?

The `Server` HTTP header often reveals information about your web server software and version (e.g., `Server: Apache/2.4.29 (Ubuntu)`).

Why is it important?

This information can be useful to attackers. If you are running a version with a known vulnerability, exposing the version number makes it much easier for automated tools to target your server.

What is the impact?

It's a low-level security risk. Hiding the server signature is a good practice for security hardening (a concept known as 'security through obscurity').