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https://lowes.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
46
GRADE
F
FIX
3
REVIEW
2
PASS
1
INFO
0
Device:
Mobile Desktop
Checks
6
1 PASS 2 REVIEW 3 FIX
F
CO2 Per Page Load
Action
4.10g CO2 per view
FIX
4.10g CO2 per view
Critical::
4.10g CO2 per page view
This page transfers 14.5 MB, producing an estimated 4.10g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.76g, network 0.71g, end-user device 2.63g.
Got: 4.10g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 492.5 kg CO2/year
With 10,000 page views per month, this page would generate approximately 492.5 kg of CO2 annually — equivalent to charging 61561 smartphones.

4.10g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 5% of websites

Sustainable Web Design model v4 · Page size: 14.5 MB

Your site
4.10g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.76g
Network
0.71g
End-user device
2.63g
At 10,000 monthly views: Monthly: 41.0 kg · Annual: 492.5 kg · ≈ 61561 smartphone charges
D
Green Hosting
Action
Not green
FIX
Not green
Info::
No confirmed renewable energy commitment detected
Consider providers like Cloudflare, Google Cloud, or Vercel that match 100% of their energy use with renewables.
Info::
Akamai: Committed to 50% renewable by 2030
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 HostingNot Green Hosted
Hosting Not identified✗CDN Akamai✗

Akamai: Committed to 50% renewable by 2030

Based on known provider commitments. Verify at thegreenwebfoundation.org

F
Carbon Budget
Action
95th percentile
FIX
95th percentile
Warning::
4.10g 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

4.10g

95th percentile

Cleaner than 5% of websites

✗ Above the median website

vs Median 584% more
vs Target 721% more
C
Transfer Efficiency
Action
75% efficient
REVIEW
75% efficient
Warning::
Transfer efficiency: 75%
An estimated 3718 KB (25%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 3718 KB of unused JavaScript. This wasted data produces 1.03g of unnecessary CO2 per page view.
75% efficient

Total waste: 3718 KB (25% of page weight)

Unused JS 3718 KB

1.03g unnecessary CO2 per visit

Actual transfer 14839 KB
Theoretical minimum 11120 KB
Potential savings 3718 KB (1.03g 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 146 KB (vs 14839 KB first visit). 543 of 557 resources are served from browser cache, saving 4.06g CO2 per repeat visit.
Info::
Repeat visit: 0.04g CO2 (first visit: 4.10g)
First visit
14839 KB
Repeat visit
146 KB

99% reduction on repeat visits

Saving 4.06g CO2 per returning visitor

543 resources served from cache · 14 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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