https://coldsolutions.com.au/contact-us/
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
78
GRADE
C
FIX
2
REVIEW
2
PASS
3
INFO
1
Checks
83 PASS 2 REVIEW 2 FIX
DCO2 Per Page LoadAction0.86g CO2 per viewFIX
CO2 Per Page Load
Action0.86g CO2 per view
0.86g CO2 per view
Info::
0.86g CO2 per page view
This page transfers 3.6 MB, producing an estimated 0.86g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.18g, end-user device 0.66g.
Got: 0.86g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 103.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 103.0 kg of CO2 annually — equivalent to charging 12880 smartphones.
Info::
Green hosting reduces data center emissions
0.86g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 43% of websites
Sustainable Web Design model v4 · Page size: 3.6 MB
Your site
0.86g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.18g
End-user device
0.66g
At 10,000 monthly views: Monthly: 8.6 kg · Annual: 103.0 kg · ≈ 12880 smartphone charges
DCarbon BudgetAction57th percentileFIX
Carbon Budget
Action57th percentile
57th percentile
Warning::
0.86g CO2 — above the median website (0.60g)
Heavier than an estimated 43% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 57th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.86g
57th percentile
Cleaner than 43% of websites
✗ Above the median website
vs Median 43% more
vs Target 72% more
BTransfer Efficiency84% efficientREVIEW
Transfer Efficiency
84% efficient
84% efficient
Info::
Transfer efficiency: 84%
An estimated 587 KB (16%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 587 KB of unused JavaScript. This wasted data produces 0.14g of unnecessary CO2 per page view.
Total waste: 587 KB (16% of page weight)
Unused JS 587 KB
0.14g unnecessary CO2 per visit
Actual transfer 3715 KB
Theoretical minimum 3127 KB
Potential savings 587 KB (0.14g CO2)
See Deep Analysis sections above for specific optimizations.
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: Cloudways, CDN: Cloudflare
Info::
Cloudways: 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 Cloudways✓CDN Cloudflare✓
Cloudways: 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 Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 91 KB (vs 3715 KB first visit). 121 of 126 resources are served from browser cache, saving 0.84g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 0.86g)
First visit
3715 KB
Repeat visit
91 KB
98% reduction on repeat visits
Saving 0.84g CO2 per returning visitor
121 resources served from cache · 5 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
Image Optimization48 images, 3834 KB total, 0 KB wastedINFO
Image Optimization
48 images, 3834 KB total, 0 KB wasted
Image Optimization Audit
Total Images
48
Total Size
3834 KB
42 missing alt text 45 missing dimensions 45 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.