https://www.daraz.pk/#?
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
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
DCO2 Per Page LoadAction1.19g CO2 per viewFIX
CO2 Per Page Load
Action1.19g CO2 per view
1.19g CO2 per view
Warning::
1.19g CO2 per page view
This page transfers 4.2 MB, producing an estimated 1.19g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.22g, network 0.20g, end-user device 0.76g.
Got: 1.19g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 142.3 kg CO2/year
With 10,000 page views per month, this page would generate approximately 142.3 kg of CO2 annually — equivalent to charging 17790 smartphones.
1.19g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 34% of websites
Sustainable Web Design model v4 · Page size: 4.2 MB
Your site
1.19g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.22g
Network
0.20g
End-user device
0.76g
At 10,000 monthly views: Monthly: 11.9 kg · Annual: 142.3 kg · ≈ 17790 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 Tengine✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
DCarbon BudgetAction66th percentileFIX
Carbon Budget
Action66th percentile
66th percentile
Warning::
1.19g CO2 — above the median website (0.60g)
Heavier than an estimated 34% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 66th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.19g
66th percentile
Cleaner than 34% of websites
✗ Above the median website
vs Median 98% more
vs Target 137% more
BTransfer Efficiency80% efficientREVIEW
Transfer Efficiency
80% efficient
80% efficient
Info::
Transfer efficiency: 80%
An estimated 837 KB (20%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 837 KB of unused JavaScript. This wasted data produces 0.23g of unnecessary CO2 per page view.
Total waste: 837 KB (20% of page weight)
Unused JS 837 KB
0.23g unnecessary CO2 per visit
Actual transfer 4288 KB
Theoretical minimum 3451 KB
Potential savings 837 KB (0.23g 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.
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 Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 75 KB (vs 4288 KB first visit). 209 of 210 resources are served from browser cache, saving 1.17g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 1.19g)
First visit
4288 KB
Repeat visit
75 KB
98% reduction on repeat visits
Saving 1.17g CO2 per returning visitor
209 resources served from cache · 1 resources re-downloaded
Image Optimization120 images, 1540 KB total, 63 KB wastedINFO
Image Optimization
120 images, 1540 KB total, 63 KB wasted
Image Optimization Audit
Total Images
120
Total Size
1540 KB
Oversized
20
Wasted
63 KB
95 missing alt text 120 missing dimensions 77 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.