Module 2: how to redirect http to https (manual method)

I have created a domain in bluehost. I am not using click funnel. Rather i have uploaded a SAS survey presell (manual method) page. How to force redirect http to https for saspage?

My domain main home page works fine, forced to https (as ssl security is enabled). But for SAS pre sell both pages are available. HTTP , HTTPS.
Any suggestion ?
Thank you.