Firstly, what do we mean by the term duplicate content? The web savvy will no doubt be familiar with the term and understand the impact it can have on your website optimisation campaign. But what about the SEO novices ? The last thing you want to do is invest heavily in a website, only for your website optimisation efforts to be hampered by duplicate content.

Duplicate content is content which appears on more than one web page or URL. The problem arises when the search engines attempt to index the site, as they are unable to decipher which version of the text is most relevant to a given search query. This is a real flaw in any website optimisation strategy, as, in an attempt to show only the most relevant search results, search engines rarely show multiple, duplicated pieces of content. As a result, they are forced to determine which piece is most likely to be original, which is far from a simple process.

So exactly why does duplicate content cause the search engines so much trouble, and ultimately undermine your website optimisation strategy?

• Search engines are unsure which version of the content is the original, and as such it is difficult to determine which to index and display in search results.
• Search engines are unable to determine whether to directly link metrics such as trust, authority, anchor text etc to one page, or to separate it between multiple versions.
• Further difficulties are posed when search engines decide which version of the content to rank for search results.

Okay, so duplicate content is not good for an organisation’s website optimisation campaign for the above reasons. But what types of duplicate content issues can arise?

• Printer-friendly versions – versions of content which are printer friendly are more likely to cause duplicate content issues when multiple versions of pages are indexed due to the duplicate content present.
• URL parameters – some URL parameters such as click tracking as well as certain analytics codes may cause issues with duplicate content.
• Session IDs – this is one of the most frequent causes of duplicate content issues and can undermine even the most comprehensive website optimisation campaign. Problems occur when each user visiting a website is assigned a different session ID which is stored in the URL.

If you are confused about any further issues with duplicate content then contact Designer Websites, the website optimisation specialists. Call us on 0845 272 6813 today.