https://trendgraphai.com/design-partner
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
80
GRADE
B
FIX
1
REVIEW
3
PASS
3
INFO
1
Checks
83 PASS 3 REVIEW 1 FIX
DGreen HostingActionUnknownFIX
Green Hosting
ActionUnknown
Unknown
Info::
Hosting provider could not be identified
Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
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 HostingUnable to Determine
Hosting Not identified✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
CTransfer EfficiencyAction65% efficientREVIEW
Transfer Efficiency
Action65% efficient
65% efficient
Warning::
Transfer efficiency: 65%
An estimated 133 KB (35%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 133 KB of unused JavaScript. This wasted data produces 0.04g of unnecessary CO2 per page view.
Total waste: 133 KB (35% of page weight)
Unused JS 133 KB
0.04g unnecessary CO2 per visit
Actual transfer 379 KB
Theoretical minimum 246 KB
Potential savings 133 KB (0.04g CO2)
See Deep Analysis sections above for specific optimizations.
CWeb Font Weight VariantsAction10 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
Action10 font weights loaded across 2 famil(y/ies)
10 font weights loaded across 2 famil(y/ies)
Warning::
10 font weights loaded -- likely 100+ KB of unused payload
Loading 10 font weights typically transfers 200-400 KB just for fonts. Most pages legitimately use 2-3 weights (regular + bold, maybe medium). Audit which weights your stylesheet actually applies and trim the Google Fonts URL accordingly. Affected families: JetBrains Mono, Space Grotesk.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
A+CO2 Per Page Load0.10g CO2 per viewPASS
CO2 Per Page Load
0.10g CO2 per view
0.10g CO2 per view
Info::
0.10g CO2 per page view
This page transfers 0.4 MB, producing an estimated 0.10g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.02g, end-user device 0.07g.
Got: 0.10g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 12.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 12.6 kg of CO2 annually — equivalent to charging 1574 smartphones.
0.10g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 90% of websites
Sustainable Web Design model v4 · Page size: 0.4 MB
Your site
0.10g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.02g
End-user device
0.07g
At 10,000 monthly views: Monthly: 1.0 kg · Annual: 12.6 kg · ≈ 1574 smartphone charges
A+Repeat Visit Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 0 KB (vs 379 KB first visit). 22 of 23 resources are served from browser cache, saving 0.10g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.10g)
First visit
379 KB
Repeat visit
0 KB
100% reduction on repeat visits
Saving 0.10g CO2 per returning visitor
22 resources served from cache · 1 resources re-downloaded
A+Carbon Budget10th percentilePASS
Carbon Budget
10th percentile
10th percentile
Info::
0.10g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 90% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 10th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.10g
10th percentile
Cleaner than 90% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 83% cleaner ✓
vs Target 79% cleaner ✓
Image Optimization4 images, 0 KB total, 0 KB wastedINFO
Image Optimization
4 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
4
Total Size
0 KB
Oversized
1
4 missing dimensions 4 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.