https://mixpanel.com
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
76
GRADE
C
FIX
1
REVIEW
3
PASS
2
INFO
0
Checks
62 PASS 3 REVIEW 1 FIX
DCarbon BudgetAction51th percentileFIX
Carbon Budget
Action51th percentile
51th percentile
Warning::
0.66g CO2 — above the median website (0.60g)
Heavier than an estimated 49% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 51th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.66g
51st percentile
Cleaner than 49% of websites
✗ Above the median website
vs Median 11% more
vs Target 33% more
BCO2 Per Page Load0.66g CO2 per viewREVIEW
CO2 Per Page Load
0.66g CO2 per view
0.66g CO2 per view
Info::
0.66g CO2 per page view
This page transfers 2.8 MB, producing an estimated 0.66g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.14g, end-user device 0.51g.
Got: 0.66g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 79.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 79.6 kg of CO2 annually — equivalent to charging 9947 smartphones.
Info::
Green hosting reduces data center emissions
0.66g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 49% of websites
Sustainable Web Design model v4 · Page size: 2.8 MB
Your site
0.66g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.14g
End-user device
0.51g
At 10,000 monthly views: Monthly: 6.6 kg · Annual: 79.6 kg · ≈ 9947 smartphone charges
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Amazon Web Services uses renewable energy
Info::
Amazon Web Services: Verified by the Green Web Foundation
Info::
Google Cloud CDN: Inherits Google Cloud regional renewable mix
Info::
Green hosting status based on known provider commitments
Green hosting detection uses a curated database of provider renewable energy commitments. This is not a real-time verification. For authoritative checks, visit thegreenwebfoundation.org.
Green Hosting✓ Green Hosted
Hosting Amazon Web Services✓CDN Google Cloud CDN✗
Amazon Web Services: Verified by the Green Web Foundation
Google Cloud CDN: Inherits Google Cloud regional renewable mix
Based on known provider commitments. Verify at thegreenwebfoundation.org
BTransfer Efficiency85% efficientREVIEW
Transfer Efficiency
85% efficient
85% efficient
Info::
Transfer efficiency: 85%
An estimated 434 KB (15%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 434 KB of unused JavaScript. This wasted data produces 0.10g of unnecessary CO2 per page view.
Total waste: 434 KB (15% of page weight)
Unused JS 434 KB
0.10g unnecessary CO2 per visit
Actual transfer 2869 KB
Theoretical minimum 2434 KB
Potential savings 434 KB (0.10g CO2)
See Deep Analysis sections above for specific optimizations.
A+Repeat Visit Weight96% cachedPASS
Repeat Visit Weight
96% cached
96% cached
Info::
96% reduction on repeat visits
Returning visitors download only 101 KB (vs 2869 KB first visit). 112 of 114 resources are served from browser cache, saving 0.64g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 0.66g)
First visit
2869 KB
Repeat visit
101 KB
96% reduction on repeat visits
Saving 0.64g CO2 per returning visitor
112 resources served from cache · 2 resources re-downloaded
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Google Cloud
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.