About This Tool
Calculate your website's carbon footprint and environmental impact. Analyze page weight, energy usage, and CO2 emissions per visit. Get eco-efficiency ratings and offset recommendations.
How to Use - Website Carbon Tracker
Step 1: Enter Website URL
- Enter the website URL you want to analyze (e.g.,
https://google.com) - You can enter with or without the protocol (https:// will be added automatically)
- Click "Calculate Carbon Footprint" to analyze the website
Step 2: Review Eco-Efficiency Rating
- Grade: See the eco-efficiency rating (A+ to F) based on page weight
- A+ to A: Excellent (under 0.5-1 MB)
- B: Good (1-2 MB)
- C: Fair (2-3 MB)
- D to F: Poor (over 3-5 MB)
Step 3: Understand The Shock
- CO₂ per Visit: See how many grams of CO₂ are emitted per website visit
- Page Weight: View the total bytes (HTML, CSS, JS, Images) transferred
- Energy Intensity: See the energy consumption factor used in calculations
Step 4: Review The Offset
- Trees to Offset: See how many trees are needed to offset yearly traffic (assuming 10,000 visits/month)
- Car Miles Equivalent: View the equivalent car miles driven per year
- These metrics help visualize the environmental impact in real-world terms
Step 5: Understand Calculation Details
- Review the technical details of the carbon footprint calculation
- Formula: Page Weight (MB) × Energy Intensity (kWh/MB) × Carbon Factor (kg CO₂/kWh)
- Based on the Sustainable Web Design model with industry-standard values
💡 Tip: This tool uses Google PageSpeed Insights API to fetch page weight data and applies the Sustainable Web Design model to calculate carbon emissions. Lower page weight = lower carbon footprint. Use this to make your website more eco-friendly!
Frequently Asked Questions
The tool uses the Sustainable Web Design model: Page Weight (MB) × Energy Intensity (0.0003 kWh/MB) × Carbon Factor (0.475 kg CO₂/kWh). It fetches page weight from Google PageSpeed Insights API to calculate CO₂ emissions per visit.
A+ to A ratings indicate excellent performance (under 0.5-1 MB page weight). B is good (1-2 MB), C is fair (2-3 MB), and D to F indicates poor performance (over 3-5 MB). Lower page weight means less energy consumption and lower carbon emissions.
The calculation assumes 10,000 visits per month (120,000 per year). One tree absorbs approximately 21 kg of CO₂ per year. The tool calculates how many trees are needed to offset the annual carbon emissions from website traffic.
The internet accounts for 3.7% of global carbon emissions. By optimizing your website's page weight and energy efficiency, you can reduce environmental impact while improving user experience and potentially lowering hosting costs.
Optimize images, minify CSS/JavaScript, use efficient code, enable compression, reduce third-party scripts, and choose green hosting. The tool provides specific recommendations based on your page weight.
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