In the eyes of a search engine, what is the difference between a spam site or a parked domain? Thanks in advance
Spam Site: - Tons of links pointing to some "pharma, gambling, adult" etc related sites. - Keyword stuffing on main page with anchored links - Hidden links - Connection to bad neighborhood sites Parked Domain - Advertisement by third party which does not carry any dofollow juice, something like Godaddy parked domains.
Is there a particular code for a parked domain? For example 301 is a permenant redirect. Or is it really just a page for advertising. What is stopping people fro buying 100 domains and make their own page on their own web server and call it a 'parked' domain and then have all of these 'parked' domains point back to their own main site? If it is 'parked' then what is stopping Google from penalizing such sites?