Hi, I noticed today when I typed "man cat" and clicked on the "http://"
link in the man page that it did not redirect my browser from http to https.

$ curl -I http://www.gnu.org/software/coreutils/
HTTP/1.1 200 OK
Date: Tue, 12 Jul 2022 00:42:26 GMT
Server: Apache/2.4.29
Content-Location: coreutils.html
Vary: negotiate,Accept-Encoding
TCN: choice
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
X-Frame-Options: sameorigin
X-Content-Type-Options: nosniff
Access-Control-Allow-Origin: (null)
Accept-Ranges: bytes
Cache-Control: max-age=0
Expires: Tue, 12 Jul 2022 00:42:26 GMT
Content-Type: text/html
Content-Language: en

I also noticed this previous recent issue where this was resolved using an
nginx redirect from port 80 to 443 for *.guix.info

https://issues.guix.gnu.org/37348

Could we do this for all *.gnu.org too ?

After the domain and all of its subdomains are on HTTPS, then gnu.org can
also be added to the HSTS preload list.

https://hstspreload.org/

Best,
Ronak