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https://pchome.com.tw

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
68
GRADE
D
FIX
2
REVIEW
1
PASS
3
INFO
0
Device:
Mobile Desktop
Checks
6
3 PASS 1 REVIEW 2 FIX
F
CO2 Per Page Load
Action
1.73g CO2 per view
FIX
1.73g CO2 per view
Warning::
1.73g CO2 per page view
This page transfers 7.3 MB, producing an estimated 1.73g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.36g, end-user device 1.33g.
Got: 1.73g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 208.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 208.2 kg of CO2 annually — equivalent to charging 26024 smartphones.
Info::
Green hosting reduces data center emissions

1.73g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 18% of websites

Sustainable Web Design model v4 · Page size: 7.3 MB

Your site
1.73g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.04g
Network
0.36g
End-user device
1.33g
At 10,000 monthly views: Monthly: 17.3 kg · Annual: 208.2 kg · ≈ 26024 smartphone charges
F
Carbon Budget
Action
82th percentile
FIX
82th percentile
Warning::
1.73g CO2 — above the median website (0.60g)
Heavier than an estimated 18% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 82th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

1.73g

82nd percentile

Cleaner than 18% of websites

✗ Above the median website

vs Median 189% more
vs Target 247% more
B
Green Hosting
Green (hosting)
REVIEW
Green (hosting)
Info::
Google Cloud uses renewable energy
Info::
Google Cloud: Verified by the Green Web Foundation
Info::
Google Cloud CDN: Inherits Google Cloud regional renewable mix
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 Hosting✓ Green Hosted
Hosting Google Cloud✓CDN Google Cloud CDN✗

Google Cloud: Verified by the Green Web Foundation

Google Cloud CDN: Inherits Google Cloud regional renewable mix

Based on known provider commitments. Verify at thegreenwebfoundation.org

A+
Repeat Visit Weight
99% cached
PASS
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 83 KB (vs 7506 KB first visit). 301 of 305 resources are served from browser cache, saving 1.72g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 1.73g)
First visit
7506 KB
Repeat visit
83 KB

99% reduction on repeat visits

Saving 1.72g CO2 per returning visitor

301 resources served from cache · 4 resources re-downloaded

A+
Transfer Efficiency
98% efficient
PASS
98% efficient
Info::
Transfer efficiency: 98%
Only 177 KB of potential savings identified. Your page is well-optimized for size.
98% efficient

Total waste: 177 KB (2% of page weight)

Unused JS 177 KB

0.04g unnecessary CO2 per visit

Actual transfer 7506 KB
Theoretical minimum 7328 KB
Potential savings 177 KB (0.04g CO2)

See Deep Analysis sections above for specific optimizations.

A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

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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