Google Analytics Shows Keywords with Zero Visits

This situation arises when a keyword has impressions associated with
it, but not visits as recorded by the tracking code on your site.This
might happen if the visitor visits your website through one traffic
source, then goes back and visits your website again through another
traffic source during the same session. For example, let's assume that
the visitor first came through an organic search, went back to Google
to refine his search and then came back to your website through your
AdWords ad. In this case, the keyword in the organic search will show
a visit, but the revenue from the conversion will be attributed to the
most recent traffic source, which is your AdWords ad. Since the
visitor returned to your site during the same session, the second
keyword will show zero visits but will have revenue attributed to it.

We understand that this may cause confusion, and our engineers are
currently working on a more intuitive way of displaying this
information.
Thank you for your understanding in the meantime."

So it looks like the keyword used in the first visit will show the
visit, but the second keyword will show 0 visits

Useful Tools for Test the Website

1. Browsershots is an online service that automatically captures full page screenshot images of your website in various browsers across all different OS platforms. You also have the option to preview the website design in browsers with or without Flash, Java and JavaScript.

2. IE NetRenderer is another service that’s much faster than Browsershots but it can check the rendering only for different versions of Internet Explorer.

3. Mac oriented websites can try BrowsrCamp which is like Browsershots but for the Mac OS browsers only.

4. To see how your website appears on the small screens of mobile phones like the BlackBerry or Windows Mobile, check out BrowserCam. Another good option is the Opera Simulator that lets you experience a mobile version of Opera from the desktop.

5. Pingdom is a free online service that mimics the way a page is loaded in the web browser. It shows statistics (size, loading time) for every object on the web page so you know about the culprits who may slow down the website.

6. HTML Tidy is a tool for checking and cleaning up HTML source files. It is especially useful for finding and correcting errors in deeply nested HTML, or for making grotesque code legible once more.