Averaged Total Page Authority (TPA) of the Top Pages on Google is the best available indicator of Keyword Difficulty.
Keyword SEO Pro shows the Page Authorities of the top 10 web pages (left columns 1 – 10) and the corresponding Domain Authorities (right columns).
Hovering the cursor over a cell brings up the URL of the page.
Clicking on the cell brings up the webpage in the browser.
The web page in position 2 for ‘website’ is http://en.wikipedia.org/wiki/Website – it has a Page Authority of 90 and a domain authority of 100.
PA column = Averaged PageR Authorities of the webpages on the top page of Google for each Keyword.
DA column = Averaged Domain Authorities of the associated HomePages.
TPA column = Keyword Difficulty = The averaged competition strength of the top 10 webpages. (PA + DA)
KSP indicates website HomePages in the left side columns by colouring the cells green and pink in the right side columns.
TPA is the Keyword SEO Pro primary indication of Keyword Difficulty
10. Keyword Difficulty Key
KD (Keyword Difficulty) is the averaged Total Page Authorities (TPA) of the pages on the top page of Google for the keyword.
From thousands of keywords analyzed, keyword difficulty is:
The above table also shows colour codes used in the KSP output tables.