https://fineco.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
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
FCO2 Per Page LoadAction1.81g CO2 per viewFIX
CO2 Per Page Load
Action1.81g CO2 per view
1.81g CO2 per view
Warning::
1.81g CO2 per page view
This page transfers 6.4 MB, producing an estimated 1.81g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.34g, network 0.31g, end-user device 1.16g.
Got: 1.81g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 217.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 217.6 kg of CO2 annually — equivalent to charging 27197 smartphones.
1.81g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 16% of websites
Sustainable Web Design model v4 · Page size: 6.4 MB
Your site
1.81g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.34g
Network
0.31g
End-user device
1.16g
At 10,000 monthly views: Monthly: 18.1 kg · Annual: 217.6 kg · ≈ 27197 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::
Akamai: Committed to 50% renewable by 2030
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 Next.js✗CDN Akamai✗
Akamai: Committed to 50% renewable by 2030
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction84th percentileFIX
Carbon Budget
Action84th percentile
84th percentile
Warning::
1.81g CO2 — above the median website (0.60g)
Heavier than an estimated 16% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 84th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.81g
84th percentile
Cleaner than 16% of websites
✗ Above the median website
vs Median 202% more
vs Target 263% more
BTransfer Efficiency89% efficientREVIEW
Transfer Efficiency
89% efficient
89% efficient
Info::
Transfer efficiency: 89%
An estimated 701 KB (11%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 701 KB of unused JavaScript. This wasted data produces 0.19g of unnecessary CO2 per page view.
Total waste: 701 KB (11% of page weight)
Unused JS 701 KB
0.19g unnecessary CO2 per visit
Actual transfer 6556 KB
Theoretical minimum 5854 KB
Potential savings 701 KB (0.19g 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
A+Repeat Visit Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 26 KB (vs 6556 KB first visit). 72 of 73 resources are served from browser cache, saving 1.81g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 1.81g)
First visit
6556 KB
Repeat visit
26 KB
100% reduction on repeat visits
Saving 1.81g CO2 per returning visitor
72 resources served from cache · 1 resources re-downloaded
Image Optimization17 images, 0 KB total, 0 KB wastedINFO
Image Optimization
17 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
17
Total Size
0 KB
3 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.