Improved security of {muscle,pcsclite,ccid} websites

I recently discovered the Mozilla Observatory service:

The Mozilla HTTP Observatory is a set of tools to analyze your website and inform you if you are utilizing the many available methods to secure it.


Initially the 3 websites, and I manage had a very bad score of F or 20/100.

F is is worst score. So I needed to do something to improve the situation and the security a bit.


After some configuration of the web server and some minor update of the web pages I now get a score of A+ or 110/100.

If you find something broken on the web sites please tell me. I may have missed something.


I think I could still improve the security. If you have ideas of what to do just tell me.