Estimate the carbon emissions of website delivery and the effect of green hosting.
Website emissions follow directly from data transferred, energy intensity and the carbon intensity of the electricity used. Green hosting addresses only the hosting portion, not the network or device energy. Page weight reduction is the most effective lever because it reduces energy across the whole delivery chain rather than just the data centre.
Website Carbon
Emissions = data × energy intensity × grid carbon intensity
Emissions = data × energy intensity × grid carbon intensity Website emissions follow directly from data transferred, energy intensity and the carbon intensity of the electricity used. Green hosting addresses only the hosting portion, not the network or device energy.
Page weight reduction is the most effective lever because it reduces energy across the whole delivery chain rather than just the data centre.
This calculator takes 5 inputs: Monthly pageviews, Average page weight, Energy intensity, Grid carbon intensity, Share on renewable-powered hosting. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.