https://aruba.it
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
87
GRADE
B
FIX
0
REVIEW
2
PASS
4
INFO
0
Checks
64 PASS 2 REVIEW
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Microsoft IIS uses renewable energy
Info::
Microsoft IIS: 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 Microsoft IIS✓CDN Not identified✗
Microsoft IIS: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
BCarbon Budget39th percentileREVIEW
Carbon Budget
39th percentile
39th percentile
Info::
0.49g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 61% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 39th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.49g
39th percentile
Cleaner than 61% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 18% cleaner ✓
vs Target 2% cleaner ✓
ACO2 Per Page Load0.49g CO2 per viewPASS
CO2 Per Page Load
0.49g CO2 per view
0.49g CO2 per view
Info::
0.49g CO2 per page view
This page transfers 2.1 MB, producing an estimated 0.49g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.10g, end-user device 0.38g.
Got: 0.49g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 58.9 kg CO2/year
With 10,000 page views per month, this page would generate approximately 58.9 kg of CO2 annually — equivalent to charging 7366 smartphones.
Info::
Green hosting reduces data center emissions
0.49g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 61% of websites
Sustainable Web Design model v4 · Page size: 2.1 MB
Your site
0.49g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.01g
Network
0.10g
End-user device
0.38g
At 10,000 monthly views: Monthly: 4.9 kg · Annual: 58.9 kg · ≈ 7366 smartphone charges
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 44 KB (vs 2124 KB first visit). 117 of 119 resources are served from browser cache, saving 0.48g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.49g)
First visit
2124 KB
Repeat visit
44 KB
98% reduction on repeat visits
Saving 0.48g CO2 per returning visitor
117 resources served from cache · 2 resources re-downloaded
A+Transfer Efficiency95% efficientPASS
Transfer Efficiency
95% efficient
95% efficient
Info::
Transfer efficiency: 95%
Only 102 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 102 KB (5% of page weight)
Unused JS 102 KB
0.02g unnecessary CO2 per visit
Actual transfer 2124 KB
Theoretical minimum 2022 KB
Potential savings 102 KB (0.02g 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: Aruba.it
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.