Each page is rated for Successful Delivery, by our rule based rating system. Pages with zero failed deliveries, like this one, are rated as GOOD. Pages are rated as POOR if they are significantly worse than average in failed deliveries. That is:
Using this weeks average in the comparison prevents your rating from being affected by a poor week on the Web or at our service provider. The "Threshold " factor is adjusted to rate about 20% of the pages as POOR.
Pages that are neither GOOD nor POOR are rated as OK. Because the "Threshold" factor is set relative to all the pages we monitor, the standard for OK pages will rise over time with rising Web delivery performance. We believe your clients will rate your site relative to others on the Web, so this rising threshold is quite realistic.
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