How many poller cycles must be down before it will send an alert. After an alert is sent, in order for a 'Site Recovering' Email to be send, it must also be up this number of poller cycles.
This is the string to search for on the Maintenance .The Service Check will check for this string if the above string is not found.If found, it means that the service is under maintenance.
This is the string to search for a known failure in the service response.The Service Check will only alert if this string is found, ignoring any timeout issues and the search strings above.