My Subdomain not working

My domain is working properly, but unfortunately my subdomain (website shows, but not secure) is not working. My subdomain (ex. shop.domain.com) was added to Cloudflare as:
TYPE A NAME shop VALUE 192.255.299.9 TTL Automatic.
From what I see I did everything correctly, but it is still not showing secure. Can anybody help me?

Without being able to examine the site, all I can suggest is to test it here:
https://www.whynopadlock.com/

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.