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https://asus.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
66
GRADE
D
FIX
3
REVIEW
2
PASS
1
INFO
0
Device:
Mobile Desktop
Checks
6
1 PASS 2 REVIEW 3 FIX
D
CO2 Per Page Load
Action
1.06g CO2 per view
FIX
1.06g CO2 per view
Warning::
1.06g CO2 per page view
This page transfers 3.7 MB, producing an estimated 1.06g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.20g, network 0.18g, end-user device 0.68g.
Got: 1.06g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 127.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 127.0 kg of CO2 annually — equivalent to charging 15876 smartphones.

1.06g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 37% of websites

Sustainable Web Design model v4 · Page size: 3.7 MB

Your site
1.06g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.20g
Network
0.18g
End-user device
0.68g
At 10,000 monthly views: Monthly: 10.6 kg · Annual: 127.0 kg · ≈ 15876 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

D
Carbon Budget
Action
63th percentile
FIX
63th percentile
Warning::
1.06g CO2 — above the median website (0.60g)
Heavier than an estimated 37% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 63th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

1.06g

63rd percentile

Cleaner than 37% of websites

✗ Above the median website

vs Median 76% more
vs Target 112% more
B
Transfer Efficiency
81% efficient
REVIEW
81% efficient
Info::
Transfer efficiency: 81%
An estimated 744 KB (19%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 744 KB of unused JavaScript. This wasted data produces 0.21g of unnecessary CO2 per page view.
81% efficient

Total waste: 744 KB (19% of page weight)

Unused JS 744 KB

0.21g unnecessary CO2 per visit

Actual transfer 3827 KB
Theoretical minimum 3082 KB
Potential savings 744 KB (0.21g 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
98% cached
PASS
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 66 KB (vs 3827 KB first visit). 153 of 154 resources are served from browser cache, saving 1.04g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 1.06g)
First visit
3827 KB
Repeat visit
66 KB

98% reduction on repeat visits

Saving 1.04g CO2 per returning visitor

153 resources served from cache · 1 resources re-downloaded

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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