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https://staples.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
64
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
1.07g CO2 per view
FIX
1.07g CO2 per view
Warning::
1.07g CO2 per page view
This page transfers 3.8 MB, producing an estimated 1.07g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.20g, network 0.19g, end-user device 0.69g.
Got: 1.07g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 128.4 kg CO2/year
With 10,000 page views per month, this page would generate approximately 128.4 kg of CO2 annually — equivalent to charging 16055 smartphones.

1.07g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 37% of websites

Sustainable Web Design model v4 · Page size: 3.8 MB

Your site
1.07g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.20g
Network
0.19g
End-user device
0.69g
At 10,000 monthly views: Monthly: 10.7 kg · Annual: 128.4 kg · ≈ 16055 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 Next.js✗CDN Akamai✗

Akamai: Committed to 50% renewable by 2030

Based on known provider commitments. Verify at thegreenwebfoundation.org

D
Carbon Budget
Action
63th percentile
FIX
63th percentile
Warning::
1.07g 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

1.07g

63rd percentile

Cleaner than 37% of websites

✗ Above the median website

vs Median 78% more
vs Target 114% more
B
Transfer Efficiency
81% efficient
REVIEW
81% efficient
Info::
Transfer efficiency: 81%
An estimated 728 KB (19%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 728 KB of unused JavaScript. This wasted data produces 0.20g of unnecessary CO2 per page view.
81% efficient

Total waste: 728 KB (19% of page weight)

Unused JS 728 KB

0.20g unnecessary CO2 per visit

Actual transfer 3870 KB
Theoretical minimum 3141 KB
Potential savings 728 KB (0.20g 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
97% cached
PASS
97% cached
Info::
97% reduction on repeat visits
Returning visitors download only 114 KB (vs 3870 KB first visit). 224 of 226 resources are served from browser cache, saving 1.04g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 1.07g)
First visit
3870 KB
Repeat visit
114 KB

97% reduction on repeat visits

Saving 1.04g CO2 per returning visitor

224 resources served from cache · 2 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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