Does Dash between Keyword in URL Help OnPage Opt?

Tried the search option first but got no luck! I've noticed most sites listed on Page 1 in my niche have dashes between keywords in the URL.

http://www.mysite.com/c-874-blue-costumes.aspx

is this better than

http://www.mysite.com/c-874-bluecostumes.aspx

Thanks in advance!

 

Dashes separate the words so yes it would help.

 

what about a dash in the keyword of the domain itself? Do you think it helps more?

 

I would say that yes it can be better for SEO but I wouldn't choose a domain based on it. Really it depends on what the domain is for. If it is just for SERPs then I would think that is fine, but if it's something you want people to remember, then I wouldn't do it unless I had to. Also I wouldn't have more then 3 dashes in a domain or in the page name.

 

I think dashes between words in URLs used to work, but not that important anymore.

 

Dash in domain name is not really helpful anymore, it used to be once though. Dash in URL (after the domain name ends) makes your URL Search Engine Friendly. It's better to use Dash as compared to special characters.

 

yes dash will seperate out the keywords so its help