Some webmasters would not bother if other sites are linking to their sites with or without www prefix, i.e. http://www.domain.com or just http://domain.com. At first glance it looks like there is no difference.
Is it good having your site linked by others in www and non-www format?
Search engines like Google treat these as links to different pages. The real hazard is that you are likely to end up with both versions of the same site spidered, which will create duplicate content conflicts.
Try checking PageRank of your site with and without www. Most probably you'll get different values. Site could have better page rank if inbound links were not spread between www.domain.com and just domain.com.
What can we do to prevent link popularity spreading between www and non-www domain?
The first thing to do is to make a decision on www vs. non-www and follow the same convention consistently for all the links on your site. Use permanent redirects (301) to keep spiders fetching the correct page.
In this way you'll be able to control it on your site. But how to fix inbound links?
You could not control inbound links until few weeks ago. Now situation gets better.
Google provides us with Google Webmaster Tools
(formerly known as Google Sitemaps). This tool lets you see how Google crawls and indexes your site and learn about specific problems they are having accessing it. You can see the URL of the page with highest page rank, see PageRank distribution on your site, inform Google which pages are most important to you and how often they change.
One very important feature added recently to Google Webmaster Tools was setting your preferred domain.
In order to set preferred domain add www and non-www site to the list of your sites, verify ownership of both sites (Manage Site Verification link on Diagnostic tab). Then click the site link on the My Sites page and click Preferred Domain from the Diagnostic tab. You can choose from the following:
- Display URLs as http://www.yoursite.com
- Display URLs as http://yoursite.com
- Don't set an association
If you choose don't set an association, Google may treat the www and non-www versions of the domain as references to separate pages. If you choose a version, Google uses that information when crawling links to your site that use either version of the URL. This information is also used to determine how to display URLs for your site in the index.
This new option may help Google to avoid setting different page ranks on www and non-www versions of the same site. This may even increase your site's PageRank since page rank of both site versions now would be passed onto one.
lomotbiz [anti-spam] hotmail.com
April 12, 2008
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November 8, 2008
Nice post. Good tips, thanks.
beuthling [anti-spam] gmail.com
January 29, 2009
Dude this aint a place to sell your shoes
March 26, 2009
Nice post, I will try it..
April 30, 2010
Good information. You can also use rewrite rules in .htaccess if you've
moved files or changed extensions (html to php, etc.)
October 27, 2011
November 5, 2011
Nice article and very usefull. Really thanks man!
April 25, 2012
Thanks for the advice on the domain name
May 13, 2012
Thanks zubrag - I have just done thsi in webmaster tools but wasnt sure how important por not it was to set a preferred domain - nicely explained as to why it is. cheers
June 4, 2012
I changed my www to non www version but my SERP result is acting crazy. It is dropping and rising by 100's every day or 2 and seems to be at page 30-60. :( first it used to be at 2-3 . Also one thing do i have to set the preferred domain name in both of the domains in webmaster tool ?
September 17, 2012
I felt significant SERP improvements after choosing preferred domain (www). So I suppose that there were some duplicate content problems with because of inbound links.
October 21, 2012
Can anybody show the theory improvement?? is there any tools or software to increasing PR??
March 21, 2013
nice post, very informative
prakash.mishra005 [anti-spam] gmail.com
October 7, 2013
My website www.pushentr.com has pagevisits but N/A page rank.
March 9, 2014
all vacancies found here thankssr
excelanto [anti-spam] gmail.com
March 20, 2014
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dntoolz [anti-spam] gmail.com
May 7, 2014
It is so true that google page rank is not the only way to rank on
google. Another truth is that we almost forget that to do a business
online we dont need google at all its just that google ranking brings a
lots of organic traffic to the site which is targeted.
But the thing is we only need targeted traffic to do business that
does not mean google is the only place to do that. You can get traffic
in a lots of ways like social media, email marketing, paid advertising
so dont dump them they are very good traffic as well.
Its also true that no matter how hard you try no more then 10 searches
will be showen to google search so only 10 websites seo will be worth it
other are almost waste of time.
So in my view you should focus on your content and promotion of your websites with other real time methods.
administrator [anti-spam] lavarenne.qa
May 30, 2014
Hey, good day
Usually I don’t read post on blogs, however I would like to say that this write-up very pressured me to check out and do it! Your writing style has been surprised me.
Thank you, quite nice post.
excelanto [anti-spam] gmail.com
September 19, 2014
Everyone loves it when folks come together and share opinions.
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October 11, 2014
Great wonderful points.
Each and every single point mentioned above has its own importance.
thanks for this article...
I really love it !!
keep it up good work !! :)
Thanks and Regards,
jamilkhatri2014 [anti-spam] gmail.com
December 7, 2014
Thank's Nice Post....<a href="http://www.techrainy.com/2014/10/how-to-improve-google-page-ranking.html">How to Improve Google Page Ranking </a>
excelanto [anti-spam] gmail.com
February 24, 2015
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April 15, 2016
September 1, 2016
nice post, keep posting..