The Missing Requirements

Selected answers from the Dumb SEO Questions Facebook & G+ community.

• 
  Deyan Toteff: What are the missing requirement so I can have same content on two domains?
  1. The clone have noindex, nofollow
  2. The clone don't have rel-canonical
  3. The clone site the original by rel-canonical
  Also can it be done without number 3, as it a bit hard to implement? ;
• 
  Christina S: And why exactly would you want to have two or more domains for the same website?
• 
  PromozSEO: Technically 1 is sufficient but safer side, maintain 3. But the question remains same, why would you do that?
• 
  Christina S: Hah, actually if you use both 1 and 3 you're likely to get both deindexed.
• 
  PromozSEO: +Deyan Toteff ;, ;+Christina S ;is right. Do not use noindex with canonical. Thanks +Christina S ;for pointing out. :)
• 
  Deyan Toteff: Ok thank you all! If I go with having duplicate content(I don't like the idea either), I will do simple 1 and be safe, right?
• 
  Christina S: Actually you should not do either of those things.  ;
  
  That's why I asked you at first WHY you wanted to have 2 domains. I see no valid  ;reason for it.
  
  Pick one domain and 301 redirect the other one to it.
• 
  PromozSEO: +Deyan Toteff, ;yes, in case you Have To keep the same or very similar content on 2 different domains then block Google and other search engines either from the robots.txt file or from each pages (noindex) of any of the domains.
  
  The domain which is using noindex or blocking engines from robots, won't come on search results.
• 
  Christina S: But WHY 2 domains with the same content? Please answer that.