Consider this Google Analytics Reports on crack. With this script, you can get an email when any of your websites drop in visit or page view counts (or anything else you want).

This plugin uses the Google Analytics API to send you reports conditionally, and is highly extensible, allowing you to pick and choose the stats you want to email based on, the threshold to notify you at, and which stats you want to send. Best of all, it accepts a list of websites within your account to check, such that you can be managing hundreds of sites, and only receive reports for the ones that need your attention.

Obviously, a notification of a significant decline in web stats could indicate a site being down, hacked, or busted in the search results. Ready to get it? You can download the Critical Alerts script here. Want help implementing it? Watch the video below for a blow-by-blow.

After watching the video, be sure to Subscribe to my RSS Feed, as I’ll be releasing more complex and elegant reports based on this script.

Also, in case it’s unclear in the Script (or if you want to copy paste it), the cron job to run is:
php ~/public_html/analytics/alert.php

Finally, a Special Thanks to:

• This script depends upon and appreciates the google analytics php class. It can be downloaded in this bundle, or found here: http://www.askaboutphp.com/tutorials/63/google-analytics-api-class-for-php.html
• Dave Della Costa and Gordon Clark for shoring up my knowledge gaps on PHP. I’m a front-end guy by profession, so coding this was syntactically a stretch.