Issues

Validation: High Carbon Rating

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High Carbon Rating

URLs that have a carbon rating of D, E or F using the digital carbon ratings system from Sustainable Web Design.

This scale equates page weight tracked by the HTTP Archive with CO2 estimates per page view. The CO2 calculation uses the ‘The Sustainable Web Design Model’ for calculating emissions, which considers datacentres, network transfer and device usage in calculations.

The CO2 calculation and rating system can be used as a benchmark, as well as a catalyst to contribute to a more sustainable web.

How to Analyse in the SEO Spider

View URLs with this issue in the ‘Validation’ tab and ‘High Carbon Rating’ filter, and export all URLs using the ‘Export’ button.

What Triggers This Issue

This issue is triggered when a URL is assigned a carbon rating of D, E or F using the digital carbon ratings system from Sustainable Web Design.

How To Fix

Consider optimisation opportunities to reduce file size and CO2 emissions, and improve carbon footprint and rating.

The CO2 calculation and carbon rating can be integrated with analytics data to help prioritise which areas or URLs should be focused upon.

Review best practices and opportunities listed under the PageSpeed tab for more specific actions.

Further Reading

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