I would like to access my Synology NAS via HTTPS, but don't have the money to buy a certificate. I've read that you can generate your own and manually trust it. So after following the step here, I generated a crt file of my own CA, then AirDropped it to my iPhone. Then I manually trusted the profile.
However, when I access my Synology NAS in Safari, the connection still shows up as "insecure". What am I doing wrong?