There are a number of issues on git.gnupg.org:
- The image address of the w3c images are http://jigsaw.w3.org/css-
validator/images/vcss and http://www.w3.org/Icons/valid-xhtml10 - both are also
available over https, please change this to avoid mixed content warnings by
browsers. (For privacy reasons you might also consider hosting the images
locally so that no unneeded request goes to a third party.)
- The links to the W3C should also be changed to https.
- The link to the UN gives an error (and it goes to a http page), you can
change it to https://www.un.org/en/charter-united-nations/
- The gnupg-for-java link to github uses http, github is https by default,
please change to https://github.com/smartrevolution/gnupg-for-java
- The example git clone command uses the insecure git:// protocol, this should
be changed to use the secure https version.