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https://thepointsguy.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
65
GRADE
D
FIX
3
REVIEW
1
PASS
2
INFO
0
Device:
Mobile Desktop
Checks
6
2 PASS 1 REVIEW 3 FIX
D
CO2 Per Page Load
Action
1.40g CO2 per view
FIX
1.40g CO2 per view
Warning::
1.40g CO2 per page view
This page transfers 5.9 MB, producing an estimated 1.40g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.29g, end-user device 1.07g.
Got: 1.40g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 167.9 kg CO2/year
With 10,000 page views per month, this page would generate approximately 167.9 kg of CO2 annually — equivalent to charging 20987 smartphones.
Info::
Green hosting reduces data center emissions

1.40g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 28% of websites

Sustainable Web Design model v4 · Page size: 5.9 MB

Your site
1.40g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.04g
Network
0.29g
End-user device
1.07g
At 10,000 monthly views: Monthly: 14.0 kg · Annual: 167.9 kg · ≈ 20987 smartphone charges
F
Carbon Budget
Action
72th percentile
FIX
72th percentile
Warning::
1.40g CO2 — above the median website (0.60g)
Heavier than an estimated 28% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 72th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

1.40g

72nd percentile

Cleaner than 28% of websites

✗ Above the median website

vs Median 133% more
vs Target 180% more
D
Transfer Efficiency
Action
47% efficient
FIX
47% efficient
Critical::
Transfer efficiency: 47%
An estimated 3223 KB (53%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 3223 KB of unused JavaScript. This wasted data produces 0.75g of unnecessary CO2 per page view.
47% efficient

Total waste: 3223 KB (53% of page weight)

Unused JS 3223 KB

0.75g unnecessary CO2 per visit

Actual transfer 6053 KB
Theoretical minimum 2829 KB
Potential savings 3223 KB (0.75g 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
Green Hosting
Green (cdn)
PASS
Green (cdn)
Info::
Fastly CDN uses renewable energy
Since most traffic is served through the CDN, the majority of data transfer energy is renewable.
Info::
Fastly: 100% renewable energy for edge network
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 Next.js✗CDN Fastly✓

Fastly: 100% renewable energy for edge network

Based on known provider commitments. Verify at thegreenwebfoundation.org

A+
Repeat Visit Weight
98% cached
PASS
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 99 KB (vs 6053 KB first visit). 154 of 157 resources are served from browser cache, saving 1.38g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 1.40g)
First visit
6053 KB
Repeat visit
99 KB

98% reduction on repeat visits

Saving 1.38g CO2 per returning visitor

154 resources served from cache · 3 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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