&gt; If you don&#x27;t want to exclude older browsers, you need a dedicated IP address, or you need a system to manage putting multiple names on one certificate. Let&#x27;s Encrypt is a great option for multi-SAN certificates, as long as you don&#x27;t care about Windows XP users.<p>This is a website for AppImage. I doubt they&#x27;re targeting XP users.<p>&gt; If you have any kind of redundancy, doing perfect forward secrecy gets much harder. The open source approaches to scaling TLS along with PFS are bleeding edge, poorly documented, and may involve writing some code.<p>This is simply a brochure website, so this does not apply.<p>For more complex applications or websites, there is a certain degree of engineering required to support HTTPS-by-default. But in today&#x27;s world it is a necessity.