Provides information about the software running on your server that was used to generate the webpage.

This is a non-standard HTTP response header that typically provides information about the software running on your server. This is similar to the Server response header, but instead of reporting on the web server software it reports on the back end programming language or technology that you use to generate pages. For example, it might say PHP/7.0. Try to avoid disclosing the version number of the software or operating system as this can make it slightly easier for attackers to find security holes. We recommend that you do not send this header.

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