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 LoadAction1.79g CO2 per viewFIX
CO2 Per Page Load
Action1.79g CO2 per view
1.79g CO2 per view
Warning::
1.79g CO2 per page view
This page transfers 7.6 MB, producing an estimated 1.79g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.37g, end-user device 1.38g.
Got: 1.79g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 215.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 215.0 kg of CO2 annually — equivalent to charging 26872 smartphones.
Info::
Green hosting reduces data center emissions
1.79g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 16% of websites
Sustainable Web Design model v4 · Page size: 7.6 MB
Your site
1.79g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.04g
Network
0.37g
End-user device
1.38g
At 10,000 monthly views: Monthly: 17.9 kg · Annual: 215.0 kg · ≈ 26872 smartphone charges
FCarbon BudgetAction84th percentileFIX
Carbon Budget
Action84th percentile
84th percentile
Warning::
1.79g CO2 — above the median website (0.60g)
Heavier than an estimated 16% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 84th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.79g
84th percentile
Cleaner than 16% of websites
✗ Above the median website
vs Median 199% more
vs Target 258% 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 16 KB (vs 7750 KB first visit). 33 of 35 resources are served from browser cache, saving 1.79g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 1.79g)
First visit
7750 KB
Repeat visit
16 KB
100% reduction on repeat visits
Saving 1.79g CO2 per returning visitor
33 resources served from cache · 2 resources re-downloaded
A+Transfer Efficiency99% efficientPASS
Transfer Efficiency
99% efficient
99% efficient
Info::
Transfer efficiency: 99%
Only 49 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 49 KB (1% of page weight)
Unused JS 49 KB
0.01g unnecessary CO2 per visit
Actual transfer 7750 KB
Theoretical minimum 7700 KB
Potential savings 49 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.