The content which is actually the same but accessed by two
URL’s. This could be within your blog or could be on some copy-paste blog. For
example an article of wordpress can
accessed by:
http://www.example.com/SEO-optimization
http://example.com/SEO-optimization
http://example.com/tag/SEO
http://www.example.com/tag/SEO
http://example.com/category/SEO
http://www.example.com/Category/SEO
http://example23.com/SEO-post (External website)
See, We are unknowingly created 6 copies of our own content and
the google will get confused about our content to which they show for the
results. Accurately they will pick anyone of them and rest will be hidden from
Google search. At the same time, this will be an issue as Google will slowly
start penalizing your blog for lots of duplicate content. Now, the most common
question is what possible duplicate content in WordPress are and how to fix it.
Let see some techniques to fix the above issues.
Search website with site:www.example.com
See and find all the links and browse till last page and see
show results with omitted results. You will be able to find what all links
Google have indexed from your blog and you can examine what links Google should
not index. Some common parts which search engine bots should not index are:
Tags, Categories, Author, Archive, Search and so on. When you find what exactly
to do.. then proceed on making changes.
Noindex tag for Tags
and Categories
This the important place where we have to start with. In
case if you are showing complete post & not excerpt in Tags &
categories page and keeping your tags and categories as doindex (By default),
you are already creating duplicate content for your blog. Do you think your
tags and categories pages are adding any kind of value to search engine? Its
better to keep them noindex and dofollow.
Author/Archives
The archives are useful for the visitors but for search
engine again this is some duplicate content which was repeating. Because it
will be having same content as your single post page. Making this section as noindex surely will
help you.
Fix your Image attachment
URL in Wordpress
Adding image as attachment URL can lead the visitors to the
following urls when the click the image.
www.example.com/1/
www.example.com/1/SEOImage
Again this causes to duplicate content issue. One quickest
way is to use Robots meta WordPress plugin and under Permalink settings you will
see an option which says “Redirect attachment URL’s to parent post URL”. Keep
that option checked and that will take care of your this issue.
ReplytoCom issue
When you see links form replytocom, it’s time to set URL
parameter from Google Webmaster tool as noindex.
You can check for your blog too by searching in Google with:
Site: example.com replytocom and start fixing the issue.
Canonical URL
Canonical URL Tag is one of the important aspect of On-page
SEO. A URL could be access using:
http://example.com/1
http://example.com/1/
http://www.example.com/1
http://www.example.com/1/
In WordPress 2.9+, this is a default feature of WordPress or
else you can use plugin like All in one SEO, Thesis theme inbuilt feature,
Robots meta plugin to quickly add canonical to your WordPress blog.
And also we can add manually with the following code:
And also we can add manually with the following code:
<?php if ( is_singular() ) { ?>
<link rel="canonical" href="<?php
the_permalink(); ?>" />
<?php } ?>
</head>
We can use some duplicate content finder tools to check
whether others have copied our article. And you can file DCMA complain using
Google.
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