In a post on the Live Search Webmaster Centre blog, the expert noted that large, growing sites tend to produce high numbers of URLs, forcing search engine bots to work harder to index content.
To combat this, website owners should control the growth of URLs using canonicalisation, which makes sure just one URL is exposed for every piece of content, he said.
Mr Andrick advised SEO executives to remove the trailing / from the ends of web addresses and to also remove references to ‘index’ or ‘default’ in the URL.
It is also a good idea to ensure all web page file names are lower case and appear so in URLs, rather than utilising so-called CamelCase where both upper and lower case letters are used, he added.
Removing port numbers and avoiding the exposure of a secure HTTPS version of a URL were also advised by the expert.
Businesses are increasingly looking to online marketing techniques such as SEO as part of their advertising plans for 2009, according to a recent Alterian report.