https://vaibhavstoree.netlify.app
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
69
GRADE
D
FIX
2
REVIEW
2
PASS
3
INFO
1
Checks
83 PASS 2 REVIEW 2 FIX
FCO2 Per Page LoadAction1.76g CO2 per viewFIX
CO2 Per Page Load
Action1.76g CO2 per view
1.76g CO2 per view
Warning::
1.76g CO2 per page view
This page transfers 7.4 MB, producing an estimated 1.76g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.36g, end-user device 1.35g.
Got: 1.76g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 211.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 211.2 kg of CO2 annually — equivalent to charging 26403 smartphones.
Info::
Green hosting reduces data center emissions
1.76g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 17% of websites
Sustainable Web Design model v4 · Page size: 7.4 MB
Your site
1.76g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.04g
Network
0.36g
End-user device
1.35g
At 10,000 monthly views: Monthly: 17.6 kg · Annual: 211.2 kg · ≈ 26403 smartphone charges
FCarbon BudgetAction83th percentileFIX
Carbon Budget
Action83th percentile
83th percentile
Warning::
1.76g CO2 — above the median website (0.60g)
Heavier than an estimated 17% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 83th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.76g
83rd percentile
Cleaner than 17% of websites
✗ Above the median website
vs Median 193% more
vs Target 252% more
CWeb Font Weight VariantsAction8 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
Action8 font weights loaded across 2 famil(y/ies)
8 font weights loaded across 2 famil(y/ies)
Warning::
8 font weights loaded -- likely 100+ KB of unused payload
Loading 8 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: Poppins, 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
AGreen HostingGreen (cdn)PASS
Green Hosting
Green (cdn)
Green (cdn)
Info::
Netlify CDN uses renewable energy
Since most traffic is served through the CDN, the majority of data transfer energy is renewable.
Info::
Netlify: Hosted on AWS/Google Cloud with renewable energy matching
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 Not identified✗CDN Netlify✓
Netlify: Hosted on AWS/Google Cloud with renewable energy matching
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 15 KB (vs 7615 KB first visit). 28 of 29 resources are served from browser cache, saving 1.76g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 1.76g)
First visit
7615 KB
Repeat visit
15 KB
100% reduction on repeat visits
Saving 1.76g CO2 per returning visitor
28 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency99% efficientPASS
Transfer Efficiency
99% efficient
99% efficient
Info::
Transfer efficiency: 99%
Only 50 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 50 KB (1% of page weight)
Unused JS 50 KB
0.01g unnecessary CO2 per visit
Actual transfer 7615 KB
Theoretical minimum 7564 KB
Potential savings 50 KB (0.01g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization24 images, 0 KB total, 0 KB wastedINFO
Image Optimization
24 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
24
Total Size
0 KB
Oversized
1
24 missing alt text 24 missing dimensions 22 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.