https://mediaset.it
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
61
GRADE
D
FIX
3
REVIEW
4
PASS
0
INFO
1
Checks
84 REVIEW 3 FIX
DCO2 Per Page LoadAction1.47g CO2 per viewFIX
CO2 Per Page Load
Action1.47g CO2 per view
1.47g CO2 per view
Warning::
1.47g CO2 per page view
This page transfers 5.2 MB, producing an estimated 1.47g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.27g, network 0.25g, end-user device 0.94g.
Got: 1.47g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 176.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 176.6 kg of CO2 annually — equivalent to charging 22076 smartphones.
1.47g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 26% of websites
Sustainable Web Design model v4 · Page size: 5.2 MB
Your site
1.47g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.27g
Network
0.25g
End-user device
0.94g
At 10,000 monthly views: Monthly: 14.7 kg · Annual: 176.6 kg · ≈ 22076 smartphone charges
DGreen HostingActionNot greenFIX
Green Hosting
ActionNot green
Not green
Info::
No confirmed renewable energy commitment detected
Consider providers like Cloudflare, Google Cloud, or Vercel that match 100% of their energy use with renewables.
Info::
AWS: Renewable energy varies by region; committed to 100% by 2025
Info::
AWS CloudFront: Renewable varies by edge location
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 HostingNot Green Hosted
Hosting AWS✗CDN AWS CloudFront✗
AWS: Renewable energy varies by region; committed to 100% by 2025
AWS CloudFront: Renewable varies by edge location
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction74th percentileFIX
Carbon Budget
Action74th percentile
74th percentile
Warning::
1.47g CO2 — above the median website (0.60g)
Heavier than an estimated 26% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 74th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.47g
74th percentile
Cleaner than 26% of websites
✗ Above the median website
vs Median 145% more
vs Target 194% more
BRepeat Visit Weight71% cachedREVIEW
Repeat Visit Weight
71% cached
71% cached
Info::
71% reduction on repeat visits
Returning visitors download only 1551 KB (vs 5321 KB first visit). 187 of 192 resources are served from browser cache, saving 1.04g CO2 per repeat visit.
Info::
Repeat visit: 0.43g CO2 (first visit: 1.47g)
First visit
5321 KB
Repeat visit
1551 KB
71% reduction on repeat visits
Saving 1.04g CO2 per returning visitor
187 resources served from cache · 5 resources re-downloaded
BTransfer Efficiency84% efficientREVIEW
Transfer Efficiency
84% efficient
84% efficient
Info::
Transfer efficiency: 84%
An estimated 871 KB (16%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 871 KB of unused JavaScript. This wasted data produces 0.24g of unnecessary CO2 per page view.
Total waste: 871 KB (16% of page weight)
Unused JS 871 KB
0.24g unnecessary CO2 per visit
Actual transfer 5321 KB
Theoretical minimum 4449 KB
Potential savings 871 KB (0.24g CO2)
See Deep Analysis sections above for specific optimizations.
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.
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
Image Optimization200 images, 0 KB total, 0 KB wastedINFO
Image Optimization
200 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
200
Total Size
0 KB
Oversized
11
32 missing alt text 200 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.