Safari
Why is Safari now showing Amazon and some other frequented sites as not secure? It isn't allowing Amazon to open at all. Thank you
MacBook Air 13″, macOS 10.14
Something isn't right with that. Please review all the recommendations in If Safari doesn't open a page or work as expected on your Mac - Apple Support. For example, it might be associated with using a VPN.
For reference: If you see a 'Not Secure' warning while browsing with Safari - Apple Support