https://geiraonlus.it
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
84
GRADE
B
FIX
0
REVIEW
5
PASS
2
INFO
1
Checks
82 PASS 5 REVIEW
BCO2 Per Page Load0.55g CO2 per viewREVIEW
CO2 Per Page Load
0.55g CO2 per view
0.55g CO2 per view
Info::
0.55g CO2 per page view
This page transfers 2.3 MB, producing an estimated 0.55g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.11g, end-user device 0.42g.
Got: 0.55g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 65.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 65.6 kg of CO2 annually — equivalent to charging 8198 smartphones.
Info::
Green hosting reduces data center emissions
0.55g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 56% of websites
Sustainable Web Design model v4 · Page size: 2.3 MB
Your site
0.55g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.01g
Network
0.11g
End-user device
0.42g
At 10,000 monthly views: Monthly: 5.5 kg · Annual: 65.6 kg · ≈ 8198 smartphone charges
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Aruba.it uses renewable energy
Info::
Aruba.it: Listed in the Green Web Foundation dataset
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 Aruba.it✓CDN Not identified✗
Aruba.it: Listed in the Green Web Foundation dataset
Based on known provider commitments. Verify at thegreenwebfoundation.org
BCarbon Budget44th percentileREVIEW
Carbon Budget
44th percentile
44th percentile
Info::
0.55g CO2 — below the median website (0.60g)
Better than an estimated 56% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
Info::
Estimated 44th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.55g
44th percentile
Cleaner than 56% of websites
✗ Above the median website
vs Median 9% cleaner ✓
vs Target 9% more
CWeb Font Weight VariantsAction11 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
Action11 font weights loaded across 2 famil(y/ies)
11 font weights loaded across 2 famil(y/ies)
Warning::
11 font weights loaded -- likely 100+ KB of unused payload
Loading 11 font weights typically transfers 200-400 KB just for fonts. Most pages legitimately use 2-3 weights (regular + bold, maybe medium). Audit which weights your stylesheet actually applies and trim the Google Fonts URL accordingly. Affected families: Bebas Neue, Open Sans.
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 Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 32 KB (vs 2364 KB first visit). 39 of 40 resources are served from browser cache, saving 0.54g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.55g)
First visit
2364 KB
Repeat visit
32 KB
99% reduction on repeat visits
Saving 0.54g CO2 per returning visitor
39 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency97% efficientPASS
Transfer Efficiency
97% efficient
97% efficient
Info::
Transfer efficiency: 97%
Only 75 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 75 KB (3% of page weight)
Unused JS 75 KB
0.02g unnecessary CO2 per visit
Actual transfer 2364 KB
Theoretical minimum 2288 KB
Potential savings 75 KB (0.02g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization17 images, 521 KB total, 37 KB wastedINFO
Image Optimization
17 images, 521 KB total, 37 KB wasted
Image Optimization Audit
Total Images
17
Total Size
521 KB
Oversized
1
Wasted
37 KB
6 missing alt text 2 missing dimensions 1 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.