One of the biggest problems the SEO Pirate comes across when optimising websites is canonicalisation. Canonicalisation is a duplication problems. Canonicalisation occurs when a website is able to be accessed via both www.XXX.com and XXX.com, in severe cases this can cause the search engines to effectively index two identical copies of a website. Canonicalisation is a serious SEO issue that is often overlooked during the web development process of a website.
As you know, Google may penalise you if there are other websites that have the same content as you do or you have the same content on several pages of your website. By not being aware of this issue, many websites are potentially damaging their positions in search engines by failing to avoid canonicalisation of their websites url. Canonicalisation will have a negative impact on your search engine rankings, because linking websites may use different url paths to your homepage, which means that www.XXX.com and XXX.com will accumulate their own PageRank or TrustRank level.
To get around canonicalisation, the most effective way is to use the 301 redirect to the www.XXX.com version of your website. In some cases this might not be possible so here you can use the rel=canonical tag. If that fails try using Google Webmaster Tools to set the preferred domain to www.XXX.com.
Tuesday, 24 November 2009
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