https://thecut.com
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
81
GRADE
B
FIX
0
REVIEW
4
PASS
2
INFO
0
Checks
62 PASS 4 REVIEW
BCO2 Per Page Load0.58g CO2 per viewREVIEW
CO2 Per Page Load
0.58g CO2 per view
0.58g CO2 per view
Info::
0.58g CO2 per page view
This page transfers 2.5 MB, producing an estimated 0.58g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.12g, end-user device 0.45g.
Got: 0.58g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 70.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 70.0 kg of CO2 annually — equivalent to charging 8745 smartphones.
Info::
Green hosting reduces data center emissions
0.58g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 52% of websites
Sustainable Web Design model v4 · Page size: 2.5 MB
Your site
0.58g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.01g
Network
0.12g
End-user device
0.45g
At 10,000 monthly views: Monthly: 5.8 kg · Annual: 70.0 kg · ≈ 8745 smartphone charges
BCarbon Budget48th percentileREVIEW
Carbon Budget
48th percentile
48th percentile
Info::
0.58g CO2 — below the median website (0.60g)
Better than an estimated 52% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
Info::
Estimated 48th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.58g
48th percentile
Cleaner than 52% of websites
✗ Above the median website
vs Median 3% cleaner ✓
vs Target 17% more
BTransfer Efficiency84% efficientREVIEW
Transfer Efficiency
84% efficient
84% efficient
Info::
Transfer efficiency: 84%
An estimated 400 KB (16%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 400 KB of unused JavaScript. This wasted data produces 0.09g of unnecessary CO2 per page view.
Total waste: 400 KB (16% of page weight)
Unused JS 400 KB
0.09g unnecessary CO2 per visit
Actual transfer 2522 KB
Theoretical minimum 2122 KB
Potential savings 400 KB (0.09g CO2)
See Deep Analysis sections above for specific optimizations.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
AGreen HostingGreen (cdn)PASS
Green Hosting
Green (cdn)
Green (cdn)
Info::
Fastly CDN uses renewable energy
Since most traffic is served through the CDN, the majority of data transfer energy is renewable.
Info::
Fastly: 100% renewable energy for edge network
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 Not identified✗CDN Fastly✓
Fastly: 100% renewable energy for edge network
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight88% cachedPASS
Repeat Visit Weight
88% cached
88% cached
Info::
88% reduction on repeat visits
Returning visitors download only 297 KB (vs 2522 KB first visit). 118 of 127 resources are served from browser cache, saving 0.51g CO2 per repeat visit.
Info::
Repeat visit: 0.07g CO2 (first visit: 0.58g)
First visit
2522 KB
Repeat visit
297 KB
88% reduction on repeat visits
Saving 0.51g CO2 per returning visitor
118 resources served from cache · 9 resources re-downloaded
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.