What is canonical error in SEO?

14 years ago

There are some pretty good Google videos on the subject.

Basically each different URL is treated as a separate document -- which results in fissured link juice

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dburk

14 years ago

Hi amirsen

Canonical issues are one of the things that cause significant issues with search engine optimization. This video is an excellent primer on the topic:

YouTube - Broadcast Yourself.

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Softlayone

14 years ago

You can find everything related to canonical links on google support pages

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tinilxyz

Banned 14 years ago

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kellinsmith01 14 years ago

Please go to mysite dot com for getting the cononical issue.
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Stuart william

14 years ago

when you have similar content on different url then you need to redirect it to all url to single url. thats called canonization

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Tom Albas

14 years ago

Originally Posted by amirsen

Hello All,

I heard about canonical error anyone explain What is canonical error in SEO?

Thanks

This link would be good for you. I think you get your answers after reading this article
SEO advice: url canonicalization

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vyaswlc

Banned 14 years ago

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gredelhi

14 years ago

Canonical issue can affect your ranking in google search engine. This problem occurred only in google search engine. As per google webmaster guideline, a web site with www & without www is treated two individual web sites with same content. So in this case google takes one web site as a duplicate content. It affects not only your ranking also affects your web site page rank. So you need to write a specific code so that when you enter domainname.com,

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paulgl

14 years ago

Originally Posted by gredelhi

Canonical issue can affect your ranking in google search engine. This problem occurred only in google search engine. As per google webmaster guideline, a web site with www & without www is treated two individual web sites with same content. So in this case google takes one web site as a duplicate content. It affects not only your ranking also affects your web site page rank. So you need to write a specific code so that when you enter domainname.com,

That's just baloney. This is 2012, and google is one smart cookie.

Why do you think they give you multiple options of linking to
a youtube video, for just one example...

I think it will be 2014 before some people start realizing it was 2012.

Paul

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ChuckArdezzone

14 years ago

When website opens in both version with www or without www it means there is a canonical error in the site. Website should be open in the only one version.

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shaadishoppe

14 years ago

Canonical actually isn't not an actual error, but this particular tag defines that the content on the page is taken from other URL. When a search engine spiders crawls your canonicalize URL, it will redirect spiders to that URL.

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jaredrasc

14 years ago

Yes canonical issue drop your website.. so it must be fixed. You can fix it by set preferred domain in webmaster tool or using 301 redirect in .htaccess file.

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VASEO

14 years ago

Google can achieve for your web site through different Web addresses, this might produce a confusion of duplicate content for internet search engine. To avert this, we decide a frequent path for the site or say canonical path for the site.

Should you not set a frequent path this might raise canonical issues.

Much more about it here: http://googlewebmastercentral.blogsp...canonical.html

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amirsen 14 years ago

Thanks to all for sharing good info for me...
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DevilNup

14 years ago

Canonical errors are simply the case of different URLs having the same content. for example the URLs www(.)abc(.)com and www(.)abc(.)com/index.php will open same page but search engines will consider these as two different URL creating issue of duplicate contents.

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leewatson07

14 years ago

Duplicate domain is a canonical error like we have a website mysite dot com and it is opening with both of types means with world wide web sub domain and without world wide web sub domain . That's a canonical issue. we have apply 301 redirection on our website always

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keyuria

13 years ago

A Canonicalization error occurs when the same webpage is able to be loaded from multiple URLs.

Examples:
http://www.domain.com
http://domain.com
http://www.domain.com/index.phphtml
http://domain.com/index.html

For human beings, the above URLs are all one and opens the same site when entered on the browser. However for the search engines all above are different URLs having similar content.

More detailed explanation:
Suppose your website is http://www.domain.com - Go to your browser and type it in, and your homepage will show up. Now if you have canonicalization error, if you go to the browser again and type in http://www.domain.com/index.html and your same page shows up. Google or any other search engiens will see the /index.html as the same page as home page and is going to render what your webpage will render from that address. Now in this case you can say you have two canonicalization error.

Worst scenario is when you have four such errors. The above URLs I wrote are with www, what if they are also directing in the absence of www.

As search engines see all these pages as different pages and they have same content, this is where you're going to run into a major duplicate content penalty that could really squash your ranking. So duplicate content does not only arise when you copy content from some other website and paste into your site but also because of such error.

Google has to decide which url is the best represented from the possible options. Usually this would see the page with the most back links (internal and external) displayed in the search results, and so for most webmasters the problems remain hidden.

The most significant disadvantage of canonical url problems is that any link juice is split between several possible options and therfore not maximising the full ranking potential of the page.

How to eliminate the Canonicalization error?

Very simple.

To prevent the problem on an Apache server with rewrite enabled, place the following code in your .htaccess file:

To redirect from the non-www version to the www version

Code:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^domain.com
RewriteRule (.*) http://www.domain.com/$1 [R=301,L]

To redirect from the www version to the non-www version

Code:

RewriteEngine on
RewriteCond %{HTTP_HOST} .
RewriteCond %{HTTP_HOST} !^example.com
RewriteRule (.*) http://example.com/$1 [R=301,L]

To redirect from yoursite.com/index.html to yoursite.com/

Code:

RewriteEngine on
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9} /.*index.html HTTP/
RewriteRule ^(.*)index.html$ /$1 [R=301,L]

To do the same for index.php simply replace .html with .php in the code.

Please note above is only applicable for Apache Servers, the codes differ for Windows Server and ASP.

Hope this helps

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Elfen Lied

13 years ago

Hello,
My dear friend, Canonical Error: When your website home page opens with both "http://www.yourdomain.com" and "http://yourdomain.com" is known as canonical error. And now as per concern of affect then yes canonical issue can affect your ranking in google search engine. This problem occurred only in google search engine. As per google webmaster guideline, a web site with www & without www is treated two individual web sites with same content. So in this case google takes one web site as a duplicate content. It affects not only your ranking also affects your web site page rank. I hope you got your answer.
Regards

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vickyk

13 years ago

Canonical error means like if you have one domain and that domain will open with both version like with www and without www so that's means your site have canonical issue actualy site should be open only single way like with WWW only..
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cnetic

13 years ago

Agreed with dburk watch carefully the video. Hope you will find the error of SEO

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superjohn5566

13 years ago

when you have similar content on different url then you need to redirect it to all url to single url. thats called canonization

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VivekThakur

13 years ago

If your sites open With two or more url's like Link with www and without www ,This is what we called canonical error or problem. In case SEO ,Google takes it as two website with same contents and sometimes may punish it.This problem is only faces in Google search engine.Solution is 301 redirect.

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Jose Princely

13 years ago

To be clear-when your home page opens with both "http://www.example.com" and "http://example.com" is known as canonical error.

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jaisonjohn

13 years ago

Canonicalization issues is nothing but to have uniqueness of the URL i.e. http://yourdomain.com and http://www.yourdomain.com both are different pointing to similar content, so in this regard you need to redirect it using 301 or else can use canonical tag to ensure that you have unique URL.

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namesbeyond

13 years ago

Originally Posted by amirsen

Hello All,

I heard about canonical error anyone explain What is canonical error in SEO?

Thanks

If your website has problem with URLs then its called Canonical Issues
For Example:
If your website Shows same content for two different URLs like www and non www versions
such issues are called canonical issues, to solve this you need to do 301 redirect.