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My mistake I was just thinking of making it tidy, taking into account UX when on the site. I guess in this case you would want: .co.uk/insurance/car-insurance .co.uk/insurance/house-insurance .co.uk/insurance/life-insurance

The best definition of Domain Authority can be found here: http://www.seomoz.org/learn-seo/domain-authority The best definition of Page Authority can be found here: http://www.seomoz.org/learn-seo/page-authority In brief, PA is a measure of how likely a specific page is to rank well in search results. DA is a measure of how likely a random page from a given site will rank in search results. If you were to write a new article on the topic of SEO and place it on a brand new site, it would not rank as well as the same article published on SEOmoz. The reason is SEOmoz has a high DA which provides the article with a boost in search ranking. DA and PA are metrics which can help SEOs understand rankings better. Understanding these metrics also help evaluate the strength of links from a given web page on a site.