I want to find out if this is bad seo for search engines. I do not know the technical name for something like this, if you can please let me know. Here is my question: Say I have my main site example: skateboards.com But say I own: skateboardrentals.com, but on this page there is no site, but when you go here say there is an image of a skateboarder and you click on it and it takes you to my main site: skateboards.com Meaning I could have 1 main site but 10 different domains to that one site.. Make sense..? Please advice and thank you in advance!
The goal here is to gain traffic. Best traffic is organic traffic. You want great SERP for organic traffic. I believe you will not be able to optimise a simple landing page with an image and no content to gain great SERP. Why dont you concentrate on one url with great content ?
What you're talking about isn't necessarily bad... but it's not good either. In fact, it's pointless. Like Camay123 mentioned above, focus on one URL and build content and links. If you do happen to have other related sites that you want to merge with your site, be sure to use 301 redirects to pass over all link authority.