February 12, 2016
In 2009, the popular search engines – Yahoo!, Google and Bing made an announcement that they will be supporting Canonical URL tag. The idea of using Canonical URL tag is quite simple, to help the webmasters and website owners eradicate the self-created duplicate content which exists in the index list. After the introduction of
Talking about the basic premise – if a website is
When it comes to system-generated URLs, there are numerous reasons for duplicate content, and we have listed all below:
Multiple URLs – This reason is especially for E-commerce websites, where URL is created through filter options.
WWW, HTTP or HTTPS – The search engines treat http://domainname.com, http://www.domainname.com, and https://www.domainname.com differently and they will be processed in a separate manner.
Case-sensitive – Most of the browsers treat lower and upper cases similarly, but search engines do not believe in it. For search engines, both cases are separate entities.
Country URLs – When a website accesses multiple country URLs, then it is likely that
Mobile URL – When you are having
In all above instances, the content is actually
With this composition, we are taking you
How Canonical Tag Operates?
Canonical URL tag is the part of
Let’s take an example to understand how canonical URL tag operates:
Suppose you have two versions of the same content. The difference between these versions that they are available in separate sections of your website and due to the reason the other characteristics like background color and
Assume, there will be two different URLs:
Now, here it is important to use rel=canonical. This happens a lot with e-commerce websites, as they use different URLs for their products. The method of applying
Go to the HTML header and write the code as:
And you are done with
Common Errors in Implementing Canonical URL Tags
There are many cases out there, where the users have implemented canonical tags in a wrong way, these mistakes can lead to massive issues. Here, we have drawn some common mistakes in implementing the canonical tag:
Pointing Home Page
There are various websites which are having canonical tags on their home page pointing to an article. This practice would take you to the risk of losing your home page from crawling and indexing mechanism.
Putting “rel=canonical” in the Body
As we have already mentioned, canonical tags are the part of
Placing Multiple Canonical Tags
Single web page should contain only one canonical tag, which will be specified in the header section. If multiple canonical tags are used on one web page, then it will be ignored by the search engines. This fault can occur without any notification, thus, the owner should be aware of this common error.
Applying Canonical Tag on Paginated Links
When a content is
Applying Canonical Tags at the Place of 301 Redirects
Most of the people working on SEO
Social Networks Likes rel=canonical
Social Media Channels like Facebook and Twitter likes
After the introduction of Canonical URL Tags, this attribute
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