https://wallpapers.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
2
PASS
3
INFO
0
Checks
63 PASS 2 REVIEW 1 FIX
DCarbon BudgetAction51th percentileFIX
Carbon Budget
Action51th percentile
51th percentile
Warning::
0.64g 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
0.64g
51st percentile
Cleaner than 49% of websites
✗ Above the median website
vs Median 6% more
vs Target 27% more
BCO2 Per Page Load0.64g CO2 per viewREVIEW
CO2 Per Page Load
0.64g CO2 per view
0.64g CO2 per view
Info::
0.64g CO2 per page view
This page transfers 2.7 MB, producing an estimated 0.64g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.13g, end-user device 0.49g.
Got: 0.64g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 76.3 kg CO2/year
With 10,000 page views per month, this page would generate approximately 76.3 kg of CO2 annually — equivalent to charging 9536 smartphones.
Info::
Green hosting reduces data center emissions
0.64g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 49% of websites
Sustainable Web Design model v4 · Page size: 2.7 MB
Your site
0.64g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.13g
End-user device
0.49g
At 10,000 monthly views: Monthly: 6.4 kg · Annual: 76.3 kg · ≈ 9536 smartphone charges
CTransfer EfficiencyAction61% efficientREVIEW
Transfer Efficiency
Action61% efficient
61% efficient
Warning::
Transfer efficiency: 61%
An estimated 1085 KB (39%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1085 KB of unused JavaScript. This wasted data produces 0.25g of unnecessary CO2 per page view.
Total waste: 1085 KB (39% of page weight)
Unused JS 1085 KB
0.25g unnecessary CO2 per visit
Actual transfer 2750 KB
Theoretical minimum 1665 KB
Potential savings 1085 KB (0.25g CO2)
See Deep Analysis sections above for specific optimizations.
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Hetzner Online GmbH, CDN: Bunny CDN
Info::
Hetzner Online GmbH: Verified by the Green Web Foundation
Info::
Bunny CDN: Carbon-neutral CDN with renewable energy
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 Hetzner Online GmbH✓CDN Bunny CDN✓
Hetzner Online GmbH: Verified by the Green Web Foundation
Bunny CDN: Carbon-neutral CDN with renewable energy
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight96% cachedPASS
Repeat Visit Weight
96% cached
96% cached
Info::
96% reduction on repeat visits
Returning visitors download only 104 KB (vs 2750 KB first visit). 171 of 184 resources are served from browser cache, saving 0.61g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 0.64g)
First visit
2750 KB
Repeat visit
104 KB
96% reduction on repeat visits
Saving 0.61g CO2 per returning visitor
171 resources served from cache · 13 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: Hetzner Online GmbH
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.