User Centric Design, User Experience Design, Usability, Interaction Design, SEO, Hong Kong, China internet
Content migration is one of the last tasks that TG would like to do. It literally involves acquiring a new domain name, a new host company and moving contents to a new site with limited support from host companies. Almost three quarters of the task are done manually.
Two of the big worries are losing traffic from search engines and diluting link popularity as a result of duplicate content. TG has to keep identical content on the old and new site while all the new content would only be updated in the new site.
In the latest update from Google webmaster blog, the search giant offers a new solution to resolve the duplicate content by using a canonical tag link.
We now support a format that allows you to publicly specify your preferred version of a URL. If your site has identical or vastly similar content that’s accessible through multiple URLs, this format provides you with more control over the URL returned in search results. It also helps to make sure that properties such as link popularity are consolidated to your preferred version. Google webmaster blog.
By adding a <link> tag to specify a preferred version inside the <head> section of the duplicate content URLs, Google would track down the duplicates and refer them to the canonical URL. Additional URL properties such as, PageRank ad related signals are transferred as well, Google webmaster blog said.
After inserting the following link, it will be adopted by any search engine when crawling and indexing the page.

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Kelikuru.com is 嘰哩咕嚕, a Chinese term basically means rumbling. The idea comes across TG's mind while watching a cartoon show on TV few years ago. We walk through our life,day by day ; speak to many people, known or unknown, year after year and we may not notice that there are so many wonderful things passing by. Writing a blog can literally leave my foot-prints in the internet world, help me keep the memory. At this moment, a big chunk of my life is closely aligned with user-centric design, user research, web-based environment both in Hong Kong and China. Perhaps I may not be like that tomorrow, I may be in other setting, have nothing to do with usability, but who knows what's going to happen next?
SEO starter - Canonical URL tag and 301 Redirect | User-Centered Design - Kelikuru.com
February 22nd, 2009 at 11:13 pm
[...] a little further with the Canonical URL tag theme from last post of Google’s latest solution to Duplicate Content, TG did another search on the same topic in order to have a better understanding of the usage [...]
5ubliminal
March 26th, 2009 at 6:00 am
Try this wplugin: Canonical URL Wordpress Plugin.
admin
March 26th, 2009 at 9:06 pm
Thanks for sharing the information!!