Hello... Originally my Domain name was www.******.co.uk now it will be www.secure.*****.co.uk after an SSL has been installed ( this because I am running this site off a shared hosting server).. My question is that I have built up links to www.*****.co.uk but will those links still be valid if the site changes to www.secure.****.co.uk ( you still type in www.*****.co.uk but you will be redirected to www.secure.****.co.uk )? Kind Regards - Andy
Set-up the 301 redirect properly and your website will still have same links. I'm not talking about rankings though. Rankings may be affected as I have had this experience myself...
You shouldn't run your entire site though SSL. Just pages that customers enter information. The rest of the site should be on your regular domain.
I promise you that's a bad idea. Running your whole site dramatically slows your site down, and it makes it more difficult for search engines to spider it. Only put the pages where you need encryption on your shared ssl.