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Toby, I am very puzzled as to why you would ask this. To be absolutely clear to other readers of this thread: the default and minimum test schedule interval is 15 minutes. at this rate, with 60 minutes per hour, and 24 hours per day, that is 96 page requests per day 96 requests per day is not what most people would consider to be significant, especially if it is coming from a subscribed service. If 96 requests per day is a burden on a server, I would say it's not much of a server. No matter what it's uptime is Notice that I said minimum, you can set a greater interval of your preference. Most web masters want smaller test intervals because the smaller the interval, the more accurate the reporting. So, in closing, no, it does not even come close to being a denial of service in any sense of the term. HTH, plumsauce