https://watsnaydouch.site
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
61
GRADE
D
FIX
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
DCO2 Per Page LoadAction1.36g CO2 per viewFIX
CO2 Per Page Load
Action1.36g CO2 per view
1.36g CO2 per view
Warning::
1.36g CO2 per page view
This page transfers 4.8 MB, producing an estimated 1.36g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.25g, network 0.23g, end-user device 0.87g.
Got: 1.36g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 163.1 kg CO2/year
With 10,000 page views per month, this page would generate approximately 163.1 kg of CO2 annually — equivalent to charging 20386 smartphones.
1.36g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 29% of websites
Sustainable Web Design model v4 · Page size: 4.8 MB
Your site
1.36g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.25g
Network
0.23g
End-user device
0.87g
At 10,000 monthly views: Monthly: 13.6 kg · Annual: 163.1 kg · ≈ 20386 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 Express✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction71th percentileFIX
Carbon Budget
Action71th percentile
71th percentile
Warning::
1.36g CO2 — above the median website (0.60g)
Heavier than an estimated 29% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 71th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.36g
71st percentile
Cleaner than 29% of websites
✗ Above the median website
vs Median 127% more
vs Target 172% more
BTransfer Efficiency89% efficientREVIEW
Transfer Efficiency
89% efficient
89% efficient
Info::
Transfer efficiency: 89%
An estimated 520 KB (11%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 520 KB of unused JavaScript. This wasted data produces 0.14g of unnecessary CO2 per page view.
Total waste: 520 KB (11% of page weight)
Unused JS 520 KB
0.14g unnecessary CO2 per visit
Actual transfer 4914 KB
Theoretical minimum 4393 KB
Potential savings 520 KB (0.14g CO2)
See Deep Analysis sections above for specific optimizations.
CWeb Font Weight VariantsAction9 font weights loaded across 4 famil(y/ies)REVIEW
Web Font Weight Variants
Action9 font weights loaded across 4 famil(y/ies)
9 font weights loaded across 4 famil(y/ies)
Warning::
9 font weights loaded -- likely 100+ KB of unused payload
Loading 9 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: Battambang, Koulen, Moul, Rajdhani.
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 Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 1 KB (vs 4914 KB first visit). 22 of 23 resources are served from browser cache, saving 1.36g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 1.36g)
First visit
4914 KB
Repeat visit
1 KB
100% reduction on repeat visits
Saving 1.36g CO2 per returning visitor
22 resources served from cache · 1 resources re-downloaded
Image Optimization4 images, 3442 KB total, 441 KB wastedINFO
Image Optimization
4 images, 3442 KB total, 441 KB wasted
Image Optimization Audit
Total Images
4
Total Size
3442 KB
Oversized
1
Wasted
441 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.