Hi!

I've been trying to figure out what is the best way to solve this dilemma with duplicate content and multiple languages across domains.

1 product info page

2 same product but GREEN
3 same product but RED
4 same product but YELLOW

**Question: **

Since pages 2,3,4 just varies slightly I use the canonical tag to indicate they are duplicates of page 1.

Now I also want to indicate there are other language versions with the_ rel="alternate" hreflang="x" _element.

Should I place the _rel="alternate" hreflang="x" _on the canonical page only pointing to the canonical page with "x" language.

Should I place the _rel="alternate" hreflang="x" _on all pages pointing to the canonical page with the "x" language?

Should I place the _rel="alternate" hreflang="x"  _on all pages and then point it to the translated page (even if it is not a canonical page) ?

/Lars