I have a website (fake names)
cats .mydomain .comand I don't understand is this separate from SEO point of view from
www .mydomain .com?can I have a totally different website like
sofas .mydomain .comwhich is fully separate from the cats example above or does this mean that the 2 of them will share all SEO and therefore get it all confused between cats and sofas for search engines?
I know I can buy different domains, but I just want to understand this because if it is possible I want to avoid buying more domains.
Thank you very much for explaining!