https://upi.com
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
66
GRADE
D
FIX
2
REVIEW
0
PASS
4
INFO
0
Checks
64 PASS 2 FIX
FCO2 Per Page LoadAction16.27g CO2 per viewFIX
CO2 Per Page Load
Action16.27g CO2 per view
16.27g CO2 per view
Critical::
16.27g CO2 per page view
This page transfers 68.8 MB, producing an estimated 16.27g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.41g, network 3.37g, end-user device 12.50g.
Got: 16.27g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 1952.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 1952.8 kg of CO2 annually — equivalent to charging 244102 smartphones.
Info::
Green hosting reduces data center emissions
16.27g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 68.8 MB
Your site
16.27g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.41g
Network
3.37g
End-user device
12.50g
At 10,000 monthly views: Monthly: 162.7 kg · Annual: 1952.8 kg · ≈ 244102 smartphone charges
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
16.27g 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
16.27g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 2612% more
vs Target 3155% more
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Cloudflare, CDN: Cloudflare
Info::
Cloudflare: Verified by the Green Web Foundation
Info::
Cloudflare: 100% renewable energy for global network since 2019
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 Cloudflare✓CDN Cloudflare✓
Cloudflare: Verified by the Green Web Foundation
Cloudflare: 100% renewable energy for global network since 2019
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 1010 KB (vs 70405 KB first visit). 2432 of 2653 resources are served from browser cache, saving 16.04g CO2 per repeat visit.
Info::
Repeat visit: 0.23g CO2 (first visit: 16.27g)
First visit
70405 KB
Repeat visit
1010 KB
99% reduction on repeat visits
Saving 16.04g CO2 per returning visitor
2432 resources served from cache · 221 resources re-downloaded
A+Transfer Efficiency97% efficientPASS
Transfer Efficiency
97% efficient
97% efficient
Info::
Transfer efficiency: 97%
Only 1775 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 1775 KB (3% of page weight)
Unused JS 1775 KB
0.41g unnecessary CO2 per visit
Actual transfer 70405 KB
Theoretical minimum 68629 KB
Potential savings 1775 KB (0.41g CO2)
See Deep Analysis sections above for specific optimizations.
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.