Difference between page/domain authority

[mtueckcr]

could anyone explain the difference between Page Authority and Domain Authoity to me or give me a link to a site where it is explained?

Sorry if It's really obvious and I'm just too stupid to find out, but I've searched and haven't found anything.

[RikkiD22]

Domain Authority is based on the strength of the whole domain while Page Authority is based on the strength of the individual page.

Here are the full explanations:

http://www.seomoz.org/learn-seo/domain-authority

http://www.seomoz.org/learn-seo/page-authority

[lindsayjhopkins]

Hi,

I was searching for the answer to this too and found this:

Domain Authority predicts how well a web page will rank on a domain. The higher the Domain Authority, the greater the potential for an individual page on that domain to rank well.

Page Authority predicts the likelihood of a single page to rank well, regardless of its content. The higher the Page Authority, the greater the potential for that individual page to rank.

You can use Domain Authority and Page Authority to quickly target pages and websites that have the best potential to perform well in search engine results pages.

It's important to note that both Domain Authority and Page Authority are on a 100-point, logarithmic scale. Thus, it's much more difficult to grow your score from 70 to 80 than it would b to grow from 20 to 30.

Behind the scenes, Domain and Page Authority scores are calculated using SEOmoz's Ranking Models work. In essence, we analyze rankings data from the search engines and then and build a predictive scoring system using our own on-page analyses and Linkscape link data.

You can see these metrics in action by checking out our Open Site Explorer tool.

Hope it helps

Lindsay