https://fabioantichi.it
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
80
GRADE
B
FIX
0
REVIEW
3
PASS
4
INFO
1
Checks
84 PASS 3 REVIEW
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
CTransfer EfficiencyAction68% efficientREVIEW
Transfer Efficiency
Action68% efficient
68% efficient
Warning::
Transfer efficiency: 68%
An estimated 452 KB (32%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 452 KB of unused JavaScript. This wasted data produces 0.10g of unnecessary CO2 per page view.
Total waste: 452 KB (32% of page weight)
Unused JS 452 KB
0.10g unnecessary CO2 per visit
Actual transfer 1399 KB
Theoretical minimum 946 KB
Potential savings 452 KB (0.10g CO2)
See Deep Analysis sections above for specific optimizations.
CWeb Font Weight VariantsAction39 font weights loaded across 3 famil(y/ies)REVIEW
Web Font Weight Variants
Action39 font weights loaded across 3 famil(y/ies)
39 font weights loaded across 3 famil(y/ies)
Warning::
39 font weights loaded -- likely 100+ KB of unused payload
Loading 39 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: Caveat, Inter, Jost.
ACO2 Per Page Load0.32g CO2 per viewPASS
CO2 Per Page Load
0.32g CO2 per view
0.32g CO2 per view
Info::
0.32g CO2 per page view
This page transfers 1.4 MB, producing an estimated 0.32g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.07g, end-user device 0.25g.
Got: 0.32g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 38.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 38.8 kg of CO2 annually — equivalent to charging 4851 smartphones.
Info::
Green hosting reduces data center emissions
0.32g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 78% of websites
Sustainable Web Design model v4 · Page size: 1.4 MB
Your site
0.32g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.01g
Network
0.07g
End-user device
0.25g
At 10,000 monthly views: Monthly: 3.2 kg · Annual: 38.8 kg · ≈ 4851 smartphone charges
A+Repeat Visit Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 13 KB (vs 1399 KB first visit). 63 of 64 resources are served from browser cache, saving 0.32g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.32g)
First visit
1399 KB
Repeat visit
13 KB
99% reduction on repeat visits
Saving 0.32g CO2 per returning visitor
63 resources served from cache · 1 resources re-downloaded
ACarbon Budget22th percentilePASS
Carbon Budget
22th percentile
22th percentile
Info::
0.32g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 78% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 22th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.32g
22nd percentile
Cleaner than 78% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 46% cleaner ✓
vs Target 35% cleaner ✓
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 Optimization23 images, 207 KB total, 164 KB wastedINFO
Image Optimization
23 images, 207 KB total, 164 KB wasted
Image Optimization Audit
Total Images
23
Total Size
207 KB
Oversized
2
Wasted
164 KB
19 missing dimensions 7 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.