I recently purchased a domain that has a backlink from forbes. The site earlier had ssl https and getting backlink from forbes to https://sitename.com
I set up 301 redirection from this domain to my site. Now sitename.com, www.sitename.com and http://sitename.com is redirecting to my site but https://sitename.com is not.
My question is do I have to buy a ssl for this domain so https://sitename.com also redirect or is there any other way to go?