How do I resolve Twin domains? redirect website.com to www.website.com?

[sherohass]

I am new to this website. Tried to run a campain and got a warning that website.com resolves to www.website.com which hinders SERP by competing for Keyword indexing!. (website is my domain name)

Would appreciate help with this.

Thanks.

S.H.

PS: here is the exact wording of error :

We have detected that the domain www.yfvaccine.com and the domain yfvaccine.com both respond to web requests and do not redirect. Having two "twin" domains that both resolve forces them to battle for SERP positions, making your SEO efforts less effective. We suggest redirecting one, then entering the other here.

[JamesNorquay]

You need to place a 301 re direct from the www to the non www (or vice versa)

Ideally you need to pick the most authority version URL for the website,

In my eyes the non WWW is a strong choice in today's market.

[sherohass]

Thanks a lot. I really appreciate that . But how exactly do i do the redirection?

Thanks.

S.H

[JamesNorquay]

Depends what CMS you have, can be easy or hard, you can do the redirect in the htaccess file using a 301 for the correct page. Some more information here: http://www.tamingthebeast.net/articles3/spiders-301-redirect.htm I would also talk to your developer if you are not sure how to do it.

Kind Regards

[sherohass]

James. Thanks a lot.

I forwarded your answer to my coder. I have been on SEOMOZ for 2 days only and I love the help I am getting here.

Best Regards.

[AlanMosley]

If you are using Microsoft IIS server here is a simple tutorial

http://thatsit.com.au/seo/tutorials/how-to-fix-canonical-domain-name-issues

[Twinbytes]

This is great information, however I have a  rather unique problem.  My website has multiple subdomains (add on domains) and if I do the .htaccess trick, not only does it work for redirecting my main site, but it redirects all my domains!  Noooo!  Not sure what I can do about that, but if anyone has any suggestions on how to handle that particlar situation, that would be great!

[sherohass]

Hi Just want to let you know. Had this problem resolved and now my website is showing among Top 10 in Google for my Area and Region. Before resolution I was number 10 in few cities and non existant in the rest. Thanks a lot.