I want (for purposes of SEO) to read a web page URL using some tool and get back the text only (no markup) words on that page, in rank order, with the most frequently occurring word first, like this:
This is such a mind-bogglingly useful thing to want that I'm astonished that I can't find such a tool. Does such a thing exist? My question is about the existence of a keyword density tool, not about which one is "best" nor about keyword stuffing, which I know is bad.
Google's advice, from their Webmaster blog, is "Search engine optimization includes things as simple as keyword research to ensure that the right words are on the page, not just industry jargon that normal people will never type." http://googlewebmastercentral.blogspot.com/2012/04/another-step-to-reward-high-quality.html
I'm trying to help a friend who runs a lawn service. It turns out the site's main page talks about "landscape maintenance" and not "lawn service." It needs to be rewritten using vocabulary searchers are likely to use. A tool such as was identified in the accepted answer will help me find those things over the site's dozen or so pages.