Understanding Duplicate Content

By Author: Asep Saepudin
Total Articles: 1
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Different web address (URL) on a blog or site that displays the official content with this understanding, such as duplicate content, many of us do not realize that we have inadvertently create duplicate content on our own blogs.

Duplicate content can be formed when:
Using Tags (labels) and media who incidentally will refer to the original content of posts or pages. For example: http://www.semangatbisnis/sitemap/ and http://www.semangatbisnis.com/tag/about-seo/

When our blog is not configured properly, causing a variety of URLs. For example the name of the blog by using the www and without www, home, index.html, etc.. Example http://www.asaepudin.com and http://asaepudin.com/ or http://www.domain.com and http://www.domain.com/index.html

The parameters used in a session id, comment, code tracking, etc.. Example: http://www.domain.com/product.php?item=landing-page1 or http://www.domain.com/product.php?item=landing-page1&trackingid=2742&sessionid=9361

Diverse variation of a page that contains only a few content pages that look identical or contain too many words and phrases are the same. ...
... For example pages retailer products with similar specifications.
Do not believe? Please read directly from Google Web Master

Understanding Canonical URLs:
Understanding Canonical URLs according to Google and other search engines are:
A web URL addresses that have been labeled so it is considered as the canonical URL address of the official from some other URL that provides identical content.
Canonical URL will direct the search engine to retrieve web addresses that have been tagged as the canonical version of the official or right of our blog address.

History Canonical URLs
To overcome the problem of duplicate content as above, Google officially announced the use of a canonical labeling function on 12 February 2009. Followed by other search engines like Yahoo and Bing. But still we as the blog owner must determine which official URL by adding the canonical label. That way, search engines will recognize where the official URL and does not take a different URL.

Benefits Canonical URLs
Canonical URL will cause Google to take a web address such as a version of the web address of the official or true. This provides benefits in the form:
In the search results page or SERP, which displayed only the canonical URL
Avoiding problems and also dilution dilution links Page Rank. Links from other sites that point to our blog content using a variety of URL will be pointing only to the canonical URL. This means that our blog page rank in search engines will increase because all the various URLs that will flow correctly to the page that it should be.
Currently, this canonical label also applies to a different domain name http://googlewebmastercentral.blogspot.com/2009/12/handling-legitimate-cross-domain.html.

How to use the canonical label
Canonical label can function with the basic rules of relative links
(rel =) in the form :
How to use this canonical label for a link page or posting a blog is to put it into your blog page HEAD section with the following format:

Replace http://www.sample.com/official-page.html with our real blog address. Remember: The code must be entered into the HEAD section of the blog page we are not the BODY section.

The problem is, if possible add this canonical tag in all posts and pages our blog? Maybe you will be trouble if the need to manually add them one by one, but there are several ways that can be used:

1. For users wordpress.org blog platforms, the canonical functions are already implemented in the latest version of wordpress 2.9. If you're still using an older version or before your wordpress 9.2 upgrade immediately to version 2.9.
2. Plugins All In One SEO Pack features in helping to implement the canonical function.
Install this plugin and activate the canonical features. His steps can be seen in the review and optimization tips SEO Plugins All In One SEO Pack.
3. Copy the following html code in your blog header just before the code . With this code, each page and the posts will have their own canonical.

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