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https://elektrik-24.com

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
1
PASS
5
INFO
1
Device:
Mobile Desktop
Checks
8
5 PASS 1 REVIEW 1 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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A
CO2 Per Page Load
0.41g CO2 per view
PASS
0.41g CO2 per view
Info::
0.41g CO2 per page view
This page transfers 1.4 MB, producing an estimated 0.41g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.08g, network 0.07g, end-user device 0.26g.
Got: 0.41g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 49.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 49.0 kg of CO2 annually — equivalent to charging 6127 smartphones.

0.41g

Carbon Footprint per page view

✓ Below sustainability target (0.50g)

Cleaner than 70% of websites

Sustainable Web Design model v4 · Page size: 1.4 MB

Your site
0.41g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.08g
Network
0.07g
End-user device
0.26g
At 10,000 monthly views: Monthly: 4.1 kg · Annual: 49.0 kg · ≈ 6127 smartphone charges
A+
Repeat Visit Weight
88% cached
PASS
88% cached
Info::
88% reduction on repeat visits
Returning visitors download only 171 KB (vs 1477 KB first visit). 111 of 112 resources are served from browser cache, saving 0.36g CO2 per repeat visit.
Info::
Repeat visit: 0.05g CO2 (first visit: 0.41g)
First visit
1477 KB
Repeat visit
171 KB

88% reduction on repeat visits

Saving 0.36g CO2 per returning visitor

111 resources served from cache · 1 resources re-downloaded

A
Carbon Budget
30th percentile
PASS
30th percentile
Info::
0.41g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 70% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 30th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.41g

30th percentile

Cleaner than 70% of websites

✓ Below the Web Sustainability Guidelines target

vs Median 32% cleaner ✓
vs Target 18% cleaner ✓
A+
Transfer Efficiency
92% efficient
PASS
92% efficient
Info::
Transfer efficiency: 92%
Only 123 KB of potential savings identified. Your page is well-optimized for size.
92% efficient

Total waste: 123 KB (8% of page weight)

Unused JS 123 KB

0.03g unnecessary CO2 per visit

Actual transfer 1477 KB
Theoretical minimum 1353 KB
Potential savings 123 KB (0.03g CO2)

See Deep Analysis sections above for specific optimizations.

A+
Web Font Weight Variants
4 font weights loaded across 1 famil(y/ies) -- reasonable
PASS
4 font weights loaded across 1 famil(y/ies) -- reasonable
Info::
4 font weight(s) loaded across 1 famil(y/ies)
Image Optimization
23 images, 0 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

23

Total Size

0 KB

1 missing alt text 23 missing dimensions 21 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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