https://www.themickblue.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
68
GRADE
D
FIX
3
REVIEW
2
PASS
2
INFO
1
Checks
82 PASS 2 REVIEW 3 FIX
DCO2 Per Page LoadAction1.48g CO2 per viewFIX
CO2 Per Page Load
Action1.48g CO2 per view
1.48g CO2 per view
Warning::
1.48g CO2 per page view
This page transfers 5.2 MB, producing an estimated 1.48g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.27g, network 0.26g, end-user device 0.95g.
Got: 1.48g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 177.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 177.2 kg of CO2 annually — equivalent to charging 22152 smartphones.
1.48g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 25% of websites
Sustainable Web Design model v4 · Page size: 5.2 MB
Your site
1.48g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.27g
Network
0.26g
End-user device
0.95g
At 10,000 monthly views: Monthly: 14.8 kg · Annual: 177.2 kg · ≈ 22152 smartphone charges
DGreen HostingActionNot greenFIX
Green Hosting
ActionNot green
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 Not identified✗CDN Squarespace✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction75th percentileFIX
Carbon Budget
Action75th percentile
75th percentile
Warning::
1.48g CO2 — above the median website (0.60g)
Heavier than an estimated 25% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 75th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.48g
75th percentile
Cleaner than 25% of websites
✗ Above the median website
vs Median 146% more
vs Target 195% 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.
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+Repeat Visit Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 29 KB (vs 5339 KB first visit). 47 of 48 resources are served from browser cache, saving 1.47g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 1.48g)
First visit
5339 KB
Repeat visit
29 KB
99% reduction on repeat visits
Saving 1.47g CO2 per returning visitor
47 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency93% efficientPASS
Transfer Efficiency
93% efficient
93% efficient
Info::
Transfer efficiency: 93%
Only 365 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 365 KB (7% of page weight)
Unused JS 365 KB
0.10g unnecessary CO2 per visit
Actual transfer 5339 KB
Theoretical minimum 4974 KB
Potential savings 365 KB (0.10g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization6 images, 5980 KB total, 4490 KB wastedINFO
Image Optimization
6 images, 5980 KB total, 4490 KB wasted
Image Optimization Audit
Total Images
6
Total Size
5980 KB
Oversized
2
Wasted
4490 KB
2 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.