Website Carbon Footprint
Estimate the carbon footprint of any web page. See page weight, estimated CO2 per visit, and comparisons.
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Frequently Asked Questions
How is carbon footprint calculated?▾
We estimate CO2 emissions based on data transferred per page view. The formula uses approximately 0.2g CO2 per MB, which accounts for data center energy, network transmission, and end-user device energy.
What is the average web page size?▾
According to HTTP Archive data, the median web page is about 2.5MB. Pages under this size are considered more environmentally friendly.
How can I reduce my website carbon footprint?▾
Optimize images, use lazy loading, minify CSS/JS, enable compression (gzip/brotli), and use a CDN. Smaller page sizes mean less energy consumed per visit.
What does the annual estimate assume?▾
The annual CO2 estimate assumes 10,000 monthly page views. Scale the number up or down based on your actual traffic.