https://www.viargimperiale.it
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
78
GRADE
C
FIX
2
REVIEW
2
PASS
3
INFO
1
Checks
83 PASS 2 REVIEW 2 FIX
DCO2 Per Page LoadAction1.33g CO2 per viewFIX
CO2 Per Page Load
Action1.33g CO2 per view
1.33g CO2 per view
Warning::
1.33g CO2 per page view
This page transfers 5.6 MB, producing an estimated 1.33g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.03g, network 0.28g, end-user device 1.03g.
Got: 1.33g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 160.1 kg CO2/year
With 10,000 page views per month, this page would generate approximately 160.1 kg of CO2 annually — equivalent to charging 20017 smartphones.
Info::
Green hosting reduces data center emissions
1.33g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 30% of websites
Sustainable Web Design model v4 · Page size: 5.6 MB
Your site
1.33g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.03g
Network
0.28g
End-user device
1.03g
At 10,000 monthly views: Monthly: 13.3 kg · Annual: 160.1 kg · ≈ 20017 smartphone charges
DCarbon BudgetAction70th percentileFIX
Carbon Budget
Action70th percentile
70th percentile
Warning::
1.33g CO2 — above the median website (0.60g)
Heavier than an estimated 30% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 70th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.33g
70th percentile
Cleaner than 30% of websites
✗ Above the median website
vs Median 122% more
vs Target 167% more
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Aruba.it uses renewable energy
Info::
Aruba.it: 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 Aruba.it✓CDN Not identified✗
Aruba.it: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
BWeb Font Weight VariantsNo detectable Google Fonts weightsREVIEW
Web Font Weight Variants
No detectable Google Fonts weights
No detectable Google Fonts weights
Info::
No detectable Google Fonts weights
The analyzer detects font weights via Google Fonts URL parameters (~70% of font-using sites). Self-hosted fonts and non-Google CDN fonts aren't visible to URL-based detection. If you self-host fonts, manually audit how many @font-face weights you ship -- 2-3 weights per family is typically enough; 5+ is usually unused payload.
A+Repeat Visit Weight88% cachedPASS
Repeat Visit Weight
88% cached
88% cached
Info::
88% reduction on repeat visits
Returning visitors download only 688 KB (vs 5773 KB first visit). 82 of 84 resources are served from browser cache, saving 1.18g CO2 per repeat visit.
Info::
Repeat visit: 0.16g CO2 (first visit: 1.33g)
First visit
5773 KB
Repeat visit
688 KB
88% reduction on repeat visits
Saving 1.18g CO2 per returning visitor
82 resources served from cache · 2 resources re-downloaded
A+Transfer Efficiency98% efficientPASS
Transfer Efficiency
98% efficient
98% efficient
Info::
Transfer efficiency: 98%
Only 134 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 134 KB (2% of page weight)
Unused JS 134 KB
0.03g unnecessary CO2 per visit
Actual transfer 5773 KB
Theoretical minimum 5638 KB
Potential savings 134 KB (0.03g 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
Image Optimization13 images, 286 KB total, 0 KB wastedINFO
Image Optimization
13 images, 286 KB total, 0 KB wasted
Image Optimization Audit
Total Images
13
Total Size
286 KB
Oversized
1
4 missing alt text 10 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.