SenSEO is a Firebug FireFox addon (this means you have to install FireBug to use it) checking important on-page-SEO criteria and calculating a grade of how good the current site fulfills these criteria. The tool adds one extra tab to FireBug window which allows to inspect the current page. The first thing to do is to identify a keyword (or a key phrase) to inspect the page against it. Just type in the search box and click “Inspect SEO Criteria.” The tool will run an analysis and return a generalized report where A green color of the label means your page passed the test; An orange color means there is a waning; A red color indicates a failed test; A grey color shows the element wasn’t checked. The tool checks the following page elements: Title