Consumption and emissions belong together – just like cause and effect. If consumption goes up, the footprint gets bigger. If awareness goes up, action will follow. Expectations are evolving. So we raise awareness.
Websites come to life in the user's browser – not on the server. The server only delivers the building blocks. How a page actually looks, behaves and performs is determined in the browser. Anyone testing only on the server is checking the plan, not the result. Whether a page truly works becomes visible on the screen where it appears. That's where we look.
The average web page has grown 100× heavier in 20 years. Every unnecessary kilobyte costs conversion rates, Core Web Vitals scores, hosting bandwidth, and CO₂ emissions. Sustainability and performance are the same problem.
Automated checks that catch the performance and efficiency issues driving unnecessary carbon emissions.
Page Weight & Transfer Size
Asset Optimization
Delivery Efficiency
Carbon & Hosting
What we check
11 automated checks
Page Weight
Asset Optimization
Common questions about website carbon footprint and sustainability.