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https://trailzyztech.com

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
67
GRADE
D
FIX
3
REVIEW
2
PASS
2
INFO
1
Device:
Mobile Desktop
Checks
8
2 PASS 2 REVIEW 3 FIX
F
CO2 Per Page Load
Action
1.53g CO2 per view
FIX
1.53g CO2 per view
Warning::
1.53g CO2 per page view
This page transfers 5.4 MB, producing an estimated 1.53g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.28g, network 0.26g, end-user device 0.98g.
Got: 1.53g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 183.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 183.0 kg of CO2 annually — equivalent to charging 22877 smartphones.

1.53g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 24% of websites

Sustainable Web Design model v4 · Page size: 5.4 MB

Your site
1.53g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.28g
Network
0.26g
End-user device
0.98g
At 10,000 monthly views: Monthly: 15.3 kg · Annual: 183.0 kg · ≈ 22877 smartphone charges
D
Green Hosting
Action
Not green
FIX
Not green
Info::
No confirmed renewable energy commitment detected
Consider providers like Cloudflare, Google Cloud, or Vercel that match 100% of their energy use with renewables.
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 HostingNot Green Hosted
Hosting GoDaddy✗CDN Not identified✗

Based on known provider commitments. Verify at thegreenwebfoundation.org

F
Carbon Budget
Action
76th percentile
FIX
76th percentile
Warning::
1.53g CO2 — above the median website (0.60g)
Heavier than an estimated 24% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 76th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

1.53g

76th percentile

Cleaner than 24% of websites

✗ Above the median website

vs Median 154% more
vs Target 205% more
B
Web Font Weight Variants
6 font weights loaded across 1 famil(y/ies)
REVIEW
6 font weights loaded across 1 famil(y/ies)
Info::
6 font weights loaded -- review whether all are used
5+ weights for a single page is often more than needed. Compare against the actual font-weight CSS rules in your stylesheets; trim weights that aren't applied to any element. Affected families: Poppins.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Repeat Visit Weight
97% cached
PASS
97% cached
Info::
97% reduction on repeat visits
Returning visitors download only 184 KB (vs 5514 KB first visit). 76 of 79 resources are served from browser cache, saving 1.47g CO2 per repeat visit.
Info::
Repeat visit: 0.05g CO2 (first visit: 1.53g)
First visit
5514 KB
Repeat visit
184 KB

97% reduction on repeat visits

Saving 1.47g CO2 per returning visitor

76 resources served from cache · 3 resources re-downloaded

A+
Transfer Efficiency
100% efficient
PASS
100% efficient
Info::
Transfer efficiency: 100%
Only 0 KB of potential savings identified. Your page is well-optimized for size.
100% efficient
Actual transfer 5514 KB
Theoretical minimum 5514 KB

See Deep Analysis sections above for specific optimizations.

Image Optimization
50 images, 1092 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

50

Total Size

1092 KB

2 missing alt text 50 missing dimensions 49 missing lazy loading
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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