https://tasteofhome.com
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
76
GRADE
C
FIX
2
REVIEW
1
PASS
3
INFO
0
Checks
63 PASS 1 REVIEW 2 FIX
DCO2 Per Page LoadAction1.00g CO2 per viewFIX
CO2 Per Page Load
Action1.00g CO2 per view
1.00g CO2 per view
Warning::
1.00g CO2 per page view
This page transfers 4.2 MB, producing an estimated 1.00g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.03g, network 0.21g, end-user device 0.77g.
Got: 1.00g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 120.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 120.2 kg of CO2 annually — equivalent to charging 15021 smartphones.
Info::
Green hosting reduces data center emissions
1.00g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 39% of websites
Sustainable Web Design model v4 · Page size: 4.2 MB
Your site
1.00g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.03g
Network
0.21g
End-user device
0.77g
At 10,000 monthly views: Monthly: 10.0 kg · Annual: 120.2 kg · ≈ 15021 smartphone charges
DCarbon BudgetAction61th percentileFIX
Carbon Budget
Action61th percentile
61th percentile
Warning::
1.00g CO2 — above the median website (0.60g)
Heavier than an estimated 39% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 61th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.00g
61st percentile
Cleaner than 39% of websites
✗ Above the median website
vs Median 67% more
vs Target 100% more
BTransfer Efficiency80% efficientREVIEW
Transfer Efficiency
80% efficient
80% efficient
Info::
Transfer efficiency: 80%
An estimated 868 KB (20%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 868 KB of unused JavaScript. This wasted data produces 0.20g of unnecessary CO2 per page view.
Total waste: 868 KB (20% of page weight)
Unused JS 868 KB
0.20g unnecessary CO2 per visit
Actual transfer 4332 KB
Theoretical minimum 3463 KB
Potential savings 868 KB (0.20g CO2)
See Deep Analysis sections above for specific optimizations.
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Cloudflare, CDN: Cloudflare
Info::
Cloudflare: Verified by the Green Web Foundation
Info::
Cloudflare: 100% renewable energy for global network since 2019
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 Cloudflare✓CDN Cloudflare✓
Cloudflare: Verified by the Green Web Foundation
Cloudflare: 100% renewable energy for global network since 2019
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight97% cachedPASS
Repeat Visit Weight
97% cached
97% cached
Info::
97% reduction on repeat visits
Returning visitors download only 114 KB (vs 4332 KB first visit). 393 of 419 resources are served from browser cache, saving 0.97g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 1.00g)
First visit
4332 KB
Repeat visit
114 KB
97% reduction on repeat visits
Saving 0.97g CO2 per returning visitor
393 resources served from cache · 26 resources re-downloaded
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.