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https://enelcar.bond

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
73
GRADE
C
FIX
2
REVIEW
4
PASS
1
INFO
1
Device:
Mobile Desktop
Checks
8
1 PASS 4 REVIEW 2 FIX
D
Green Hosting
Action
Unknown
FIX
Unknown
Info::
Hosting provider could not be identified
Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
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 HostingUnable to Determine
Hosting Not identified✗CDN Not identified✗

Based on known provider commitments. Verify at thegreenwebfoundation.org

D
Carbon Budget
Action
55th percentile
FIX
55th percentile
Warning::
0.80g CO2 — above the median website (0.60g)
Heavier than an estimated 45% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 55th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.80g

55th percentile

Cleaner than 45% of websites

✗ Above the median website

vs Median 33% more
vs Target 59% more
B
CO2 Per Page Load
0.80g CO2 per view
REVIEW
0.80g CO2 per view
Info::
0.80g CO2 per page view
This page transfers 2.8 MB, producing an estimated 0.80g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.15g, network 0.14g, end-user device 0.51g.
Got: 0.80g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 95.4 kg CO2/year
With 10,000 page views per month, this page would generate approximately 95.4 kg of CO2 annually — equivalent to charging 11928 smartphones.

0.80g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 45% of websites

Sustainable Web Design model v4 · Page size: 2.8 MB

Your site
0.80g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.15g
Network
0.14g
End-user device
0.51g
At 10,000 monthly views: Monthly: 8.0 kg · Annual: 95.4 kg · ≈ 11928 smartphone charges
B
Transfer Efficiency
76% efficient
REVIEW
76% efficient
Info::
Transfer efficiency: 76%
An estimated 684 KB (24%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 684 KB of unused JavaScript. This wasted data produces 0.19g of unnecessary CO2 per page view.
76% efficient

Total waste: 684 KB (24% of page weight)

Unused JS 684 KB

0.19g unnecessary CO2 per visit

Actual transfer 2875 KB
Theoretical minimum 2190 KB
Potential savings 684 KB (0.19g CO2)

See Deep Analysis sections above for specific optimizations.

B
Web Font Weight Variants
No detectable Google Fonts weights
REVIEW
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.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Repeat Visit Weight
98% cached
PASS
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 54 KB (vs 2875 KB first visit). 79 of 81 resources are served from browser cache, saving 0.78g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 0.80g)
First visit
2875 KB
Repeat visit
54 KB

98% reduction on repeat visits

Saving 0.78g CO2 per returning visitor

79 resources served from cache · 2 resources re-downloaded

Image Optimization
24 images, 367 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

24

Total Size

367 KB

1 missing alt text 24 missing dimensions 22 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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