https://seedaud.io
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
81
GRADE
B
FIX
2
REVIEW
1
PASS
4
INFO
1
Checks
84 PASS 1 REVIEW 2 FIX
DCO2 Per Page LoadAction0.99g CO2 per viewFIX
CO2 Per Page Load
Action0.99g CO2 per view
0.99g CO2 per view
Info::
0.99g CO2 per page view
This page transfers 4.2 MB, producing an estimated 0.99g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.21g, end-user device 0.76g.
Got: 0.99g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 119.1 kg CO2/year
With 10,000 page views per month, this page would generate approximately 119.1 kg of CO2 annually — equivalent to charging 14883 smartphones.
Info::
Green hosting reduces data center emissions
0.99g
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
0.99g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.21g
End-user device
0.76g
At 10,000 monthly views: Monthly: 9.9 kg · Annual: 119.1 kg · ≈ 14883 smartphone charges
DCarbon BudgetAction61th percentileFIX
Carbon Budget
Action61th percentile
61th percentile
Warning::
0.99g 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
0.99g
61st percentile
Cleaner than 39% of websites
✗ Above the median website
vs Median 65% more
vs Target 98% more
BWeb Font Weight VariantsNo detectable Google Fonts weightsREVIEW
Web Font Weight Variants
No detectable Google Fonts weights
No detectable Google Fonts weights
Info::
No detectable Google Fonts weights
The analyzer detects font weights via Google Fonts URL parameters (~70% of font-using sites). Self-hosted fonts and non-Google CDN fonts aren't visible to URL-based detection. If you self-host fonts, manually audit how many @font-face weights you ship -- 2-3 weights per family is typically enough; 5+ is usually unused payload.
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Next.js, CDN: Cloudflare
Info::
Next.js: 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 Next.js✓CDN Cloudflare✓
Next.js: 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 Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 50 KB (vs 4292 KB first visit). 27 of 28 resources are served from browser cache, saving 0.98g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.99g)
First visit
4292 KB
Repeat visit
50 KB
99% reduction on repeat visits
Saving 0.98g CO2 per returning visitor
27 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency98% efficientPASS
Transfer Efficiency
98% efficient
98% efficient
Info::
Transfer efficiency: 98%
Only 92 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 92 KB (2% of page weight)
Unused JS 92 KB
0.02g unnecessary CO2 per visit
Actual transfer 4292 KB
Theoretical minimum 4200 KB
Potential savings 92 KB (0.02g 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: Cloudflare
Image Optimization41 images, 1101 KB total, 0 KB wastedINFO
Image Optimization
41 images, 1101 KB total, 0 KB wasted
Image Optimization Audit
Total Images
41
Total Size
1101 KB
4 missing dimensions 1 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.