https://newsobserver.com
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
68
GRADE
D
FIX
2
REVIEW
2
PASS
2
INFO
0
Checks
62 PASS 2 REVIEW 2 FIX
DCO2 Per Page LoadAction1.36g CO2 per viewFIX
CO2 Per Page Load
Action1.36g CO2 per view
1.36g CO2 per view
Warning::
1.36g CO2 per page view
This page transfers 5.7 MB, producing an estimated 1.36g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.03g, network 0.28g, end-user device 1.04g.
Got: 1.36g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 162.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 162.8 kg of CO2 annually — equivalent to charging 20347 smartphones.
Info::
Green hosting reduces data center emissions
1.36g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 29% of websites
Sustainable Web Design model v4 · Page size: 5.7 MB
Your site
1.36g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.03g
Network
0.28g
End-user device
1.04g
At 10,000 monthly views: Monthly: 13.6 kg · Annual: 162.8 kg · ≈ 20347 smartphone charges
FCarbon BudgetAction71th percentileFIX
Carbon Budget
Action71th percentile
71th percentile
Warning::
1.36g CO2 — above the median website (0.60g)
Heavier than an estimated 29% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 71th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.36g
71st percentile
Cleaner than 29% of websites
✗ Above the median website
vs Median 126% more
vs Target 171% more
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Google Cloud uses renewable energy
Info::
Google Cloud: Verified by the Green Web Foundation
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 Google Cloud✓CDN Not identified✗
Google Cloud: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
BTransfer Efficiency84% efficientREVIEW
Transfer Efficiency
84% efficient
84% efficient
Info::
Transfer efficiency: 84%
An estimated 967 KB (16%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 967 KB of unused JavaScript. This wasted data produces 0.22g of unnecessary CO2 per page view.
Total waste: 967 KB (16% of page weight)
Unused JS 967 KB
0.22g unnecessary CO2 per visit
Actual transfer 5868 KB
Theoretical minimum 4901 KB
Potential savings 967 KB (0.22g CO2)
See Deep Analysis sections above for specific optimizations.
A+Repeat Visit Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 41 KB (vs 5868 KB first visit). 367 of 376 resources are served from browser cache, saving 1.35g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 1.36g)
First visit
5868 KB
Repeat visit
41 KB
99% reduction on repeat visits
Saving 1.35g CO2 per returning visitor
367 resources served from cache · 9 resources re-downloaded
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: Google Cloud
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.