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https://outlookindia.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
42
GRADE
F
FIX
4
REVIEW
1
PASS
1
INFO
0
Device:
Mobile Desktop
Checks
6
1 PASS 1 REVIEW 4 FIX
F
CO2 Per Page Load
Action
3.26g CO2 per view
FIX
3.26g CO2 per view
Critical::
3.26g CO2 per page view
This page transfers 11.5 MB, producing an estimated 3.26g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.60g, network 0.56g, end-user device 2.09g.
Got: 3.26g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 391.3 kg CO2/year
With 10,000 page views per month, this page would generate approximately 391.3 kg of CO2 annually — equivalent to charging 48912 smartphones.

3.26g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 5% of websites

Sustainable Web Design model v4 · Page size: 11.5 MB

Your site
3.26g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.60g
Network
0.56g
End-user device
2.09g
At 10,000 monthly views: Monthly: 32.6 kg · Annual: 391.3 kg · ≈ 48912 smartphone charges
D
Green Hosting
Action
Not green
FIX
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

F
Carbon Budget
Action
95th percentile
FIX
95th percentile
Warning::
3.26g CO2 — above the median website (0.60g)
Heavier than an estimated 5% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 95th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

3.26g

95th percentile

Cleaner than 5% of websites

✗ Above the median website

vs Median 443% more
vs Target 552% more
D
Transfer Efficiency
Action
57% efficient
FIX
57% efficient
Warning::
Transfer efficiency: 57%
An estimated 5072 KB (43%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 5072 KB of unused JavaScript. This wasted data produces 1.40g of unnecessary CO2 per page view.
57% efficient

Total waste: 5072 KB (43% of page weight)

Unused JS 5072 KB

1.40g unnecessary CO2 per visit

Actual transfer 11790 KB
Theoretical minimum 6717 KB
Potential savings 5072 KB (1.40g CO2)

See Deep Analysis sections above for specific optimizations.

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Repeat Visit Weight
97% cached
PASS
97% cached
Info::
97% reduction on repeat visits
Returning visitors download only 397 KB (vs 11790 KB first visit). 1129 of 1209 resources are served from browser cache, saving 3.15g CO2 per repeat visit.
Info::
Repeat visit: 0.11g CO2 (first visit: 3.26g)
First visit
11790 KB
Repeat visit
397 KB

97% reduction on repeat visits

Saving 3.15g CO2 per returning visitor

1129 resources served from cache · 80 resources re-downloaded

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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