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https://bangbros.com

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
2
PASS
2
INFO
1
Device:
Mobile Desktop
Checks
8
2 PASS 2 REVIEW 3 FIX
F
CO2 Per Page Load
Action
3.96g CO2 per view
FIX
3.96g CO2 per view
Critical::
3.96g CO2 per page view
This page transfers 14.0 MB, producing an estimated 3.96g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.73g, network 0.69g, end-user device 2.54g.
Got: 3.96g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 475.7 kg CO2/year
With 10,000 page views per month, this page would generate approximately 475.7 kg of CO2 annually — equivalent to charging 59461 smartphones.

3.96g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 5% of websites

Sustainable Web Design model v4 · Page size: 14.0 MB

Your site
3.96g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.73g
Network
0.69g
End-user device
2.54g
At 10,000 monthly views: Monthly: 39.6 kg · Annual: 475.7 kg · ≈ 59461 smartphone charges
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

F
Carbon Budget
Action
95th percentile
FIX
95th percentile
Warning::
3.96g CO2 — above the median website (0.60g)
Heavier than an estimated 5% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 95th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

3.96g

95th percentile

Cleaner than 5% of websites

✗ Above the median website

vs Median 561% more
vs Target 693% more
B
Transfer Efficiency
88% efficient
REVIEW
88% efficient
Info::
Transfer efficiency: 88%
An estimated 1725 KB (12%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1725 KB of unused JavaScript. This wasted data produces 0.48g of unnecessary CO2 per page view.
88% efficient

Total waste: 1725 KB (12% of page weight)

Unused JS 1725 KB

0.48g unnecessary CO2 per visit

Actual transfer 14333 KB
Theoretical minimum 12607 KB
Potential savings 1725 KB (0.48g 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+
Repeat Visit Weight
99% cached
PASS
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 181 KB (vs 14333 KB first visit). 159 of 162 resources are served from browser cache, saving 3.91g CO2 per repeat visit.
Info::
Repeat visit: 0.05g CO2 (first visit: 3.96g)
First visit
14333 KB
Repeat visit
181 KB

99% reduction on repeat visits

Saving 3.91g CO2 per returning visitor

159 resources served from cache · 3 resources re-downloaded

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

Image Optimization Audit

Total Images

10

Total Size

0 KB

Oversized

4

10 missing dimensions 4 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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