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https://jonathanjordanxxx.com

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
83
GRADE
B
FIX
1
REVIEW
2
PASS
4
INFO
1
Device:
Mobile Desktop
Checks
8
4 PASS 2 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

B
Transfer Efficiency
77% efficient
REVIEW
77% efficient
Info::
Transfer efficiency: 77%
An estimated 181 KB (23%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 181 KB of unused JavaScript. This wasted data produces 0.05g of unnecessary CO2 per page view.
77% efficient

Total waste: 181 KB (23% of page weight)

Unused JS 181 KB

0.05g unnecessary CO2 per visit

Actual transfer 775 KB
Theoretical minimum 593 KB
Potential savings 181 KB (0.05g CO2)

See Deep Analysis sections above for specific optimizations.

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
0.21g CO2 per view
PASS
0.21g CO2 per view
Info::
0.21g CO2 per page view
This page transfers 0.8 MB, producing an estimated 0.21g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.04g, end-user device 0.14g.
Got: 0.21g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 25.7 kg CO2/year
With 10,000 page views per month, this page would generate approximately 25.7 kg of CO2 annually — equivalent to charging 3216 smartphones.

0.21g

Carbon Footprint per page view

✓ Below sustainability target (0.50g)

Cleaner than 89% of websites

Sustainable Web Design model v4 · Page size: 0.8 MB

Your site
0.21g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.04g
Network
0.04g
End-user device
0.14g
At 10,000 monthly views: Monthly: 2.1 kg · Annual: 25.7 kg · ≈ 3216 smartphone charges
A+
Repeat Visit Weight
99% cached
PASS
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 6 KB (vs 775 KB first visit). 34 of 35 resources are served from browser cache, saving 0.21g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.21g)
First visit
775 KB
Repeat visit
6 KB

99% reduction on repeat visits

Saving 0.21g CO2 per returning visitor

34 resources served from cache · 1 resources re-downloaded

A
Carbon Budget
11th percentile
PASS
11th percentile
Info::
0.21g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 89% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 11th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.21g

11th percentile

Cleaner than 89% of websites

✓ Below the Web Sustainability Guidelines target

vs Median 64% cleaner ✓
vs Target 57% cleaner ✓
A+
Web Font Weight Variants
2 font weights loaded across 1 famil(y/ies) -- reasonable
PASS
2 font weights loaded across 1 famil(y/ies) -- reasonable
Info::
2 font weight(s) loaded across 1 famil(y/ies)
Image Optimization
3 images, 0 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

3

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.

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