Recently i observed a problem in WordPress 2.7 related to paged comments. When ever someone posts a comment in our blog – the new wordpress 2.7 automatically assigns a link as “http://POSTURL/comment-page-1/#comment-number” which creates multiple pages with same content – A major problem for SEO.
So to avoid this , there is just one setting in your wordpress setting panel,
Go to your WordPress Admin panel
Then navigate to Settings >> Discussion Settings .
here you have to uncheck the “Break comments into pages” setting.
So from now your comments will be on same page and hence no duplicate content problem. Read my post where i have given few more tricks to avoid duplicate content in wordpress else Google will punish your site.
UPDATE : Steve written a amazing post with some tweak to wordpress files, which allows you to break pages with number of comments without harming the SEO. Take a look at the post : Dealing With Duplicate Content Issues on WordPress Comments Pages. The post is giving information about the Canonical URL meta, which allows us to redirect the bot to specific page so to avoid the duplicate content problem.
If you need more information of Canonical URL read a post of Google webmaster blog
But still if you prefer not to edit the PHP files simply use the trick that i have mentioned here at my post.
UPDATE: If you are using All in one SEO pack , then no need to do any changes in your wordpress, it is automatically using Canonical meta to avoid duplicate content issue.
Happy blogging … Comments are welcome 
Apr 18, 2009 at 9:01 pm
First comment on comment’s post!
Nice article, I read this and will definitely use your opinion and thanks for a great post, again!
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Apr 18, 2009 at 9:54 pm
Good observation this problem is same with blogger too ….
I found this problem when ..
” whenever I comment on the page the pages goes in the comment section …. ”
The answer given by you is really useful .
Thanks
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Apr 19, 2009 at 2:27 am
What if you have a post with hundreds of comments? That’s why the paged comments feature is there. If you want to solve the SEO issue, see this post: ilikewordpress.com/181/dealing-with-duplicate-content-issues-on-wordpress-comments-pages/
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Chetan Replied:
April 29, 2009 at 8:25 pm
Thanks for the reminder about canonical tags
Post updated.
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Apr 19, 2009 at 3:22 pm
I have feeling that this is not the best way to deal with the comment duplication issue. Well I will have a look at all the aspect now
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Apr 19, 2009 at 9:42 pm
Nice thing u noticed…..
I am still roaming around with the previous version coz the server on which I have installed my wordpress, does not let me update the core…..
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Apr 21, 2009 at 2:58 pm
Not sure whether this is correct solution.
I will check on google and find it out.
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Apr 29, 2009 at 11:26 am
POST UPDATED [April 29 2009]
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May 1, 2009 at 5:09 am
Hi Chetan,
Congragulations first of all.For bloggers,Wordpress 2.7 version’s this problem could cause SEO problems definitely.Lots of bloggers do not know any SEO,or Seo for Google. Especially for Google Search Engine,for Google SEO;duplicate content is a big problem.Most of bloggers use wordpress and do not know any technical information about wordpress.So,you mentioned a very important point and gave big service for bloggers by sharing this information ragding to WordPress.
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May 11, 2009 at 9:34 am
I has try it. But almost time i using All in One SEO Pack. It’s good to help you. Also i do some seo techniques by my hand.
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May 26, 2009 at 11:44 am
Nice and good try that is really problem you show to us. But not sure whether this is correct solution.
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May 29, 2009 at 4:25 pm
Hi,
thanks for reminding me. Mine was checked and i would not want to peee Google off, they just gave me a PR of 4.
Thanks for commenting on my site
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May 30, 2009 at 11:54 pm
Wow! It`s to good but I needs something more different on your blog about seo . Can you give good suggestion about seo tools.
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Jun 5, 2009 at 12:17 pm
Well I will have a look at all the aspect now, Nice thing u noticed…..
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Juned Replied:
July 17, 2009 at 8:25 pm
i totally agree with Sajid Latif
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Jul 8, 2009 at 4:57 pm
It`s to good but I needs something more different on your blog about and WP Theme.
Online Word-press Theme making at Website… Check it.
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Sep 28, 2009 at 6:58 pm
Thank you! Here I was, looking for PHP hacks and plug-ins when I could have clicked on a box!
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Feb 8, 2010 at 10:01 am
i’m using All in One SEO but still get this problem. I have duplicate title tag issue (warning on Google Webmaster) for search query.
How to resolved that .. ty b4
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Chetan Replied:
February 9, 2010 at 8:25 pm
@johan, try to block the unwanted pages using robots.txt n noindex tags.
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Feb 17, 2010 at 11:20 pm
Thank for your article. But, there is a problem when we get a thousans comments… that’s is my problem with a page in my web (sorry with my English).
Regards…
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Mar 20, 2010 at 11:07 pm
I didn’t understand the thing with “Canonization” i know that is being used to reduce the duplication of content on the website, but is there anything else that i should know.
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Apr 5, 2010 at 10:17 pm
A very informative piece of advice, thanks a lot. We are working on getting our site a nice rank, which was earlier penalised for exactly duplicate content with links pointing to the main page.
Saying sorry to google helped and they are now on restore mode, starting PR1 again, wooo hoo.
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May 3, 2010 at 7:08 pm
Thanks very good for report, I follow your blog
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May 6, 2010 at 10:57 am
Very good post. When into dashboard and did it immediately. I’m thankful people take the time to research and find this stuff out!
Cheers!
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Jul 7, 2010 at 6:27 pm
In Word press the comment page is very user friendly. Online word press themes are search engine friendly. I like to use word press for blog purpose. Thanks
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Feb 3, 2011 at 3:18 pm
Great, tips. I been doing a lot of SEO/SEM in the past and I was pretty sure I know everything about this field but with your article I realized you can still teach new tricks to old dogs. I’ll be reading your other posts.
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Oct 1, 2011 at 11:48 am
Simple yet very much informative article post. It enlightens me more on SEO marketing strategies.
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