Monday, June 20, 2011

Canonical issue

Canonical URL problem is one of the most common problems that lead to sites below the performance of the website will be corrected, and if the site can provide a competitive advantage in the competition.

What exactly are the canonical URLs?

URL Canonical are fundamentally different URLs that refer to exactly the same web page. Normally, this url is due to negligence or lack of knowledge of the person /a company that made the site and if you can get ready for SEO and SEO companies could not come up, BIG mistake on their part.

Matt Cutts said the issue here: http://www.mattcutts.com/blog/seo-advice-url-canonicalization/

How does it work?
The label is part of the HTML header of a Web page, the same section you can find attribute title and description tag of the target. In fact, this label is not new, but as nofollow, but uses a new parameter rel. For example:

<link rel="canonical" href="http://www.seomoz.org/blog" />

It seems that Yahoo, Live and Google that the page in question should be treated like a copy of the engine www.seomoz.org URL / blog and all indicators point and the content must be technically feasible flows to this URL.
It seems that Yahoo, Live and Google that the page in question should be treated like a copy of the engine www.seomoz.org URL / blog and all indicators point and the content must be technically feasible flows to this URL.

Canonical URLs Tags : The label attribute is canonical in many respects similar to a 301 redirect from the standpoint of SEO. Basically, you say that the engines of several pages should be considered as one (which makes 301), without having to redirect visitors to the new URL (often save considerable personal grief dev). There are some differences, however:
So a new 301-point all traffic (robots and human visitors), the canonical label is only for motors, which means you can still track visitors in separate versions unique URL.
301 is a much stronger signal, which is one of many pages, the canonical source. Even if the engines are certainly going to support this new extension of the purpose and the confidence of the owners of the site, there are limitations. Content analysis and other algorithms to apply metrics to ensure that the site owner is not accidentally or manipulatively tags applied, and certainly expect the incorrect use of tags, when the engines to keep them separate URL to their index (l ' importance of the site owners have the same problems as indicated below).



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