If I have 4 versions of my site http://www
http://
https://www
https:// What is the best way to redirect without losing seo positions? i have been mainly using http://www but have recently added my ssl so https works also. I heard at Moz Con that I should get the https working. All of my marketing and ads are going to http://www 301 redirect 3 of them? Which 3? If https is becoming important, should that be my main url? will it hurt my seo to switch? Thank you so much in advance!

I am thinking of moving my html website to weebly. They offer a 301 redirect for my domain name. Is that ok for SEO?

Hi, I have a website that is about 7 years old. I had been using index.html as the home page. When I redesigned my site about 3 months ago I changed it to default.html. The old index.html page was still on my server. I just realized my mistake. All of my links to the home page lead to the new default.html. However, people are still landing on the old index.html. I have change the old index.html to the new design  but that means i have 2 "home" pages out there. Should i delete one? Should I leave them both there but use the canonical tag for one so it is not considered duplicate content? What is best for my rankings?