https://uptodown.com
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
80
GRADE
B
FIX
1
REVIEW
2
PASS
3
INFO
0
Checks
63 PASS 2 REVIEW 1 FIX
DCarbon BudgetAction52th percentileFIX
Carbon Budget
Action52th percentile
52th percentile
Warning::
0.70g CO2 — above the median website (0.60g)
Heavier than an estimated 48% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 52th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.70g
52nd percentile
Cleaner than 48% of websites
✗ Above the median website
vs Median 17% more
vs Target 41% more
BCO2 Per Page Load0.70g CO2 per viewREVIEW
CO2 Per Page Load
0.70g CO2 per view
0.70g CO2 per view
Info::
0.70g CO2 per page view
This page transfers 3.0 MB, producing an estimated 0.70g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.15g, end-user device 0.54g.
Got: 0.70g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 84.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 84.6 kg of CO2 annually — equivalent to charging 10570 smartphones.
Info::
Green hosting reduces data center emissions
0.70g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 48% of websites
Sustainable Web Design model v4 · Page size: 3.0 MB
Your site
0.70g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.15g
End-user device
0.54g
At 10,000 monthly views: Monthly: 7.0 kg · Annual: 84.6 kg · ≈ 10570 smartphone charges
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
OVHcloud uses renewable energy
Info::
OVHcloud: Verified by the Green Web Foundation
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 OVHcloud✓CDN Not identified✗
OVHcloud: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 46 KB (vs 3048 KB first visit). 249 of 250 resources are served from browser cache, saving 0.69g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.70g)
First visit
3048 KB
Repeat visit
46 KB
98% reduction on repeat visits
Saving 0.69g CO2 per returning visitor
249 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency94% efficientPASS
Transfer Efficiency
94% efficient
94% efficient
Info::
Transfer efficiency: 94%
Only 196 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 196 KB (6% of page weight)
Unused JS 196 KB
0.05g unnecessary CO2 per visit
Actual transfer 3048 KB
Theoretical minimum 2852 KB
Potential savings 196 KB (0.05g CO2)
See Deep Analysis sections above for specific optimizations.
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: OVHcloud
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.