How to Enable HSTS?
Follow the steps to Enable and Disable Opportunistic Encryption.
Navigate to the SSL/TLS of Cloudflare (Use this link to view How to Navigate).
Click on the "DisableEnable OpportunisticHSTS" Encryptionbutton.
Click on the Switch"understand" button and click on the "Next" button.
Click on the "Save" button.
Here, you can see Opportunistic Encryption is disabled successfully.
Enable Opportunistic Encryption :
Click on the Switch button.
Here, you can see Opportunistic EncryptionHSTS is enabled successfully.