https://amazon.it
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
78
GRADE
C
FIX
1
REVIEW
3
PASS
2
INFO
0
Checks
62 PASS 3 REVIEW 1 FIX
DGreen HostingActionUnknownFIX
Green Hosting
ActionUnknown
Unknown
Info::
Hosting provider could not be identified
Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
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 HostingUnable to Determine
Hosting Not identified✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
BCO2 Per Page Load0.60g CO2 per viewREVIEW
CO2 Per Page Load
0.60g CO2 per view
0.60g CO2 per view
Info::
0.60g CO2 per page view
This page transfers 2.1 MB, producing an estimated 0.60g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.11g, network 0.10g, end-user device 0.38g.
Got: 0.60g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 71.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 71.8 kg of CO2 annually — equivalent to charging 8968 smartphones.
0.60g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 51% of websites
Sustainable Web Design model v4 · Page size: 2.1 MB
Your site
0.60g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.11g
Network
0.10g
End-user device
0.38g
At 10,000 monthly views: Monthly: 6.0 kg · Annual: 71.8 kg · ≈ 8968 smartphone charges
BCarbon Budget49th percentileREVIEW
Carbon Budget
49th percentile
49th percentile
Info::
0.60g CO2 — below the median website (0.60g)
Better than an estimated 51% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
Info::
Estimated 49th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.60g
49th percentile
Cleaner than 51% of websites
✗ Above the median website
vs Median 0% cleaner ✓
vs Target 20% more
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
A+Repeat Visit Weight82% cachedPASS
Repeat Visit Weight
82% cached
82% cached
Info::
82% reduction on repeat visits
Returning visitors download only 393 KB (vs 2162 KB first visit). 130 of 132 resources are served from browser cache, saving 0.49g CO2 per repeat visit.
Info::
Repeat visit: 0.11g CO2 (first visit: 0.60g)
First visit
2162 KB
Repeat visit
393 KB
82% reduction on repeat visits
Saving 0.49g CO2 per returning visitor
130 resources served from cache · 2 resources re-downloaded
A+Transfer Efficiency93% efficientPASS
Transfer Efficiency
93% efficient
93% efficient
Info::
Transfer efficiency: 93%
Only 142 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 142 KB (7% of page weight)
Unused JS 142 KB
0.04g unnecessary CO2 per visit
Actual transfer 2162 KB
Theoretical minimum 2019 KB
Potential savings 142 KB (0.04g CO2)
See Deep Analysis sections above for specific optimizations.
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.