https://splsezzespa.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 LoadAction1.31g CO2 per viewFIX
CO2 Per Page Load
Action1.31g CO2 per view
1.31g CO2 per view
Warning::
1.31g CO2 per page view
This page transfers 5.5 MB, producing an estimated 1.31g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.03g, network 0.27g, end-user device 1.00g.
Got: 1.31g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 156.9 kg CO2/year
With 10,000 page views per month, this page would generate approximately 156.9 kg of CO2 annually — equivalent to charging 19615 smartphones.
Info::
Green hosting reduces data center emissions
1.31g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 30% of websites
Sustainable Web Design model v4 · Page size: 5.5 MB
Your site
1.31g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.03g
Network
0.27g
End-user device
1.00g
At 10,000 monthly views: Monthly: 13.1 kg · Annual: 156.9 kg · ≈ 19615 smartphone charges
DCarbon BudgetAction70th percentileFIX
Carbon Budget
Action70th percentile
70th percentile
Warning::
1.31g 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
1.31g
70th percentile
Cleaner than 30% of websites
✗ Above the median website
vs Median 118% more
vs Target 162% 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 Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 24 KB (vs 5657 KB first visit). 121 of 123 resources are served from browser cache, saving 1.30g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 1.31g)
First visit
5657 KB
Repeat visit
24 KB
100% reduction on repeat visits
Saving 1.30g CO2 per returning visitor
121 resources served from cache · 2 resources re-downloaded
A+Transfer Efficiency96% efficientPASS
Transfer Efficiency
96% efficient
96% efficient
Info::
Transfer efficiency: 96%
Only 199 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 199 KB (4% of page weight)
Unused JS 199 KB
0.05g unnecessary CO2 per visit
Actual transfer 5657 KB
Theoretical minimum 5457 KB
Potential savings 199 KB (0.05g 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 Optimization25 images, 1935 KB total, 1506 KB wastedINFO
Image Optimization
25 images, 1935 KB total, 1506 KB wasted
Image Optimization Audit
Total Images
25
Total Size
1935 KB
Oversized
4
Wasted
1506 KB
10 missing dimensions 4 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.