www

[bingo]

Should I write www before the URL of my web site? Does it influence anyhow the PR?

[Dan]

Not to my knowledge, Google automatically adds www into its system if no www prefix is specified.

[SBh]

Under Google's Webmaster Tool you can specify your preferred domain, i.e with www prefix or not. Otherwise Google will index both kind of names. However, PR is not affected unless www subdomain is different from the domain.

[underway]

I hope this article will help you. http://www.boutell.com/newfaq/creating/withoutwww.html

[paul]

More likely your urls get canonicalized even for non-www so don't worry, search engine will pick it up even you won't use www.

[billardent]

Originally Posted by Dan

Not to my knowledge, Google automatically adds www into its system if no www prefix is specified.

I'm not sure but it only happens if there's redirect that you have to set up...

[Dan]

Nope, it automatically indexes them to www automatically without the need of redirecting.

[hayku]

But some use redirection 301.

[Dan]

Yep, Indeed Hayku. But it's not really needed.

[Jamesking56]

you can do, but its not really needed

so you could do:

http:// google.com

or

http:// www. google.com

or

www. google.com

or

google.com

[paul]

Originally Posted by Jamesking56

you can do, but its not really needed

so you could do:

http:// google.com

or

http:// www. google.com

or

www. google.com

or

google.com

Specifically for this example, based on your IP, Google will redirect you to a country-specific site.

[trishka]

Google automatically redirect it.