@bornforphp
I have used Real Simple SSL Plugin already. When I disable Wp Optimize Plugin my site shows Secured as Green. But When I Active this Plugin it shows Secured as Green color. But after 1 day or two days when I open my website it shows not secure. Again when i login to the Admin Panel and refresh the Front end then again the Green Secure occurs.
But when I deactive the wp optimize plugin all the things remains full OK. Always Green signal with Secure. But my website remains slow as I deactive the Wp Optimize Plugin.
Anyway I have a solution. I used other Cache Plugin which did not cause this issue. It is solved already.