Sustainability for the Web

Calculate and Reduce Your
Website Carbon Emissions

Analyze any website URL to measure its carbon footprint based on data transfer, energy consumption, and hosting location. Get actionable insights to go green.

Start Analyzing — $10/mo

No credit card required for free trial

🌍
Carbon Score
CO₂ per page view
📊
Dashboard
Track multiple sites
⚡
Optimizations
Actionable fixes

Simple Pricing

Pro Plan
$10/mo

Everything you need to track and reduce your web carbon footprint.

  • ✓ Unlimited URL analyses
  • ✓ Carbon footprint dashboard
  • ✓ Lighthouse & performance data
  • ✓ Sustainability PDF reports
  • ✓ Optimization recommendations
  • ✓ Email alerts for regressions
Get Started

FAQ

How is website carbon calculated?
We measure data transfer size, server energy mix, and network/device energy to estimate grams of CO₂ per page view using the Sustainable Web Design model.
Which websites can I analyze?
Any publicly accessible URL. We use Lighthouse and WebPageTest data to gather performance metrics and compute the carbon score.
Can I generate compliance reports?
Yes. Pro subscribers can export PDF sustainability reports suitable for ESG disclosures, legal compliance, and client presentations.