Looking through my CF analytics, I see that Traffic Served Over SSL is low (29%) for the last 24 hours; it’s normally 80% from memory. I have HSTS configured (status on, max-age 12 months, include subdomains, preload on, no-sniff on) and the domain has been on the Chrome HSTS Preload List for several months. Additionally, Always Use HTTPS, Opportunistic Encryption, and Automatic HTTPS Rewrites are turned on and a pagerule is set up redirecting from http://silvobeat.com https://www.silvobeat.com. There are no http:// references in the source code or mixed content warnings.
Shouldn’t this mean that 100% is served over TLS?