https://seedtag.com
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
72
GRADE
C
FIX
2
REVIEW
0
PASS
4
INFO
0
Checks
64 PASS 2 FIX
FCO2 Per Page LoadAction1.92g CO2 per viewFIX
CO2 Per Page Load
Action1.92g CO2 per view
1.92g CO2 per view
Warning::
1.92g CO2 per page view
This page transfers 8.1 MB, producing an estimated 1.92g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.05g, network 0.40g, end-user device 1.47g.
Got: 1.92g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 229.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 229.8 kg of CO2 annually — equivalent to charging 28728 smartphones.
Info::
Green hosting reduces data center emissions
1.92g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 13% of websites
Sustainable Web Design model v4 · Page size: 8.1 MB
Your site
1.92g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.05g
Network
0.40g
End-user device
1.47g
At 10,000 monthly views: Monthly: 19.2 kg · Annual: 229.8 kg · ≈ 28728 smartphone charges
FCarbon BudgetAction87th percentileFIX
Carbon Budget
Action87th percentile
87th percentile
Warning::
1.92g CO2 — above the median website (0.60g)
Heavier than an estimated 13% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 87th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.92g
87th percentile
Cleaner than 13% of websites
✗ Above the median website
vs Median 219% more
vs Target 283% more
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Google Cloud, CDN: Cloudflare
Info::
Google Cloud: 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 Google Cloud✓CDN Cloudflare✓
Google Cloud: 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 Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 26 KB (vs 8286 KB first visit). 104 of 105 resources are served from browser cache, saving 1.91g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 1.92g)
First visit
8286 KB
Repeat visit
26 KB
100% reduction on repeat visits
Saving 1.91g CO2 per returning visitor
104 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency97% efficientPASS
Transfer Efficiency
97% efficient
97% efficient
Info::
Transfer efficiency: 97%
Only 278 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 278 KB (3% of page weight)
Unused JS 278 KB
0.06g unnecessary CO2 per visit
Actual transfer 8286 KB
Theoretical minimum 8007 KB
Potential savings 278 KB (0.06g CO2)
See Deep Analysis sections above for specific optimizations.
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: Google Cloud
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.