Indaru Ecometrics is a website plugin that estimates CO2 emissions per page view by combining page weight, visitor device type, geographic location, and time spent on the page. Unlike simple online carbon calculators that only use page weight and grid emissions intensity, the plugin fetches two calculation factors from a server — one fixed per page view and one that grows with time on page. Desktop emissions vary significantly by country (e.g., France vs. Poland due to nuclear vs. coal grids), while mobile emissions are dominated by device manufacturing rather than electricity use. The plugin also measures page weight by loading the page server-side on first visit. While the approach is more nuanced than basic calculators, the author notes the relationship between reported values and actual emissions remains indirect, urging caution when companies report emissions reductions based on such tools.
