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https://heinz.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
62
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
3.93g CO2 per view
FIX
3.93g CO2 per view
Critical::
3.93g CO2 per page view
This page transfers 16.6 MB, producing an estimated 3.93g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.10g, network 0.81g, end-user device 3.02g.
Got: 3.93g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 472.1 kg CO2/year
With 10,000 page views per month, this page would generate approximately 472.1 kg of CO2 annually — equivalent to charging 59017 smartphones.
Info::
Green hosting reduces data center emissions

3.93g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 5% of websites

Sustainable Web Design model v4 · Page size: 16.6 MB

Your site
3.93g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.10g
Network
0.81g
End-user device
3.02g
At 10,000 monthly views: Monthly: 39.3 kg · Annual: 472.1 kg · ≈ 59017 smartphone charges
F
Carbon Budget
Action
95th percentile
FIX
95th percentile
Warning::
3.93g 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

3.93g

95th percentile

Cleaner than 5% of websites

✗ Above the median website

vs Median 556% more
vs Target 687% 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
100% cached
PASS
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 83 KB (vs 17021 KB first visit). 113 of 116 resources are served from browser cache, saving 3.92g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 3.93g)
First visit
17021 KB
Repeat visit
83 KB

100% reduction on repeat visits

Saving 3.92g CO2 per returning visitor

113 resources served from cache · 3 resources re-downloaded

A+
Transfer Efficiency
91% efficient
PASS
91% efficient
Info::
Transfer efficiency: 91%
Only 1481 KB of potential savings identified. Your page is well-optimized for size.
91% efficient

Total waste: 1481 KB (9% of page weight)

Unused JS 1481 KB

0.34g unnecessary CO2 per visit

Actual transfer 17021 KB
Theoretical minimum 15540 KB
Potential savings 1481 KB (0.34g 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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