I'm getting ready to create my Shopify store and am in the process of acquiring my domain name. Virtually every domian extension is available for the name I need EXCEPT for ".com". I was wondering how much it would affect me if I had a different extension, for example ".co" or ".us". Does this affect a store's rankings and traffic in any way? Thanks!
It does not affect ranking. It may affect people perception of a site. e.g. people in Australia tend to go for a .com.au before a .com as they know they will be able to buy from it.
I could imaging there is only a slight differenc in trust between a .com and the other two.