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
4
PASS
3
INFO
1
Checks
83 PASS 4 REVIEW
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 Budget36th percentileREVIEW
Carbon Budget
36th percentile
36th percentile
Info::
0.47g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 64% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 36th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.47g
36th percentile
Cleaner than 64% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 22% cleaner ✓
vs Target 6% cleaner ✓
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
ACO2 Per Page Load0.47g CO2 per viewPASS
CO2 Per Page Load
0.47g CO2 per view
0.47g CO2 per view
Info::
0.47g CO2 per page view
This page transfers 2.0 MB, producing an estimated 0.47g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.10g, end-user device 0.36g.
Got: 0.47g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 56.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 56.2 kg of CO2 annually — equivalent to charging 7030 smartphones.
Info::
Green hosting reduces data center emissions
0.47g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 64% of websites
Sustainable Web Design model v4 · Page size: 2.0 MB
Your site
0.47g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.01g
Network
0.10g
End-user device
0.36g
At 10,000 monthly views: Monthly: 4.7 kg · Annual: 56.2 kg · ≈ 7030 smartphone charges
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 32 KB (vs 2027 KB first visit). 39 of 40 resources are served from browser cache, saving 0.46g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.47g)
First visit
2027 KB
Repeat visit
32 KB
98% reduction on repeat visits
Saving 0.46g CO2 per returning visitor
39 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency96% efficientPASS
Transfer Efficiency
96% efficient
96% efficient
Info::
Transfer efficiency: 96%
Only 75 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 75 KB (4% of page weight)
Unused JS 75 KB
0.02g unnecessary CO2 per visit
Actual transfer 2027 KB
Theoretical minimum 1951 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.