https://eleconomista.es
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
76
GRADE
C
FIX
1
REVIEW
3
PASS
2
INFO
0
Checks
62 PASS 3 REVIEW 1 FIX
DCarbon BudgetAction53th percentileFIX
Carbon Budget
Action53th percentile
53th percentile
Warning::
0.74g CO2 — above the median website (0.60g)
Heavier than an estimated 47% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 53th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.74g
53rd percentile
Cleaner than 47% of websites
✗ Above the median website
vs Median 23% more
vs Target 47% more
BCO2 Per Page Load0.74g CO2 per viewREVIEW
CO2 Per Page Load
0.74g CO2 per view
0.74g CO2 per view
Info::
0.74g CO2 per page view
This page transfers 3.1 MB, producing an estimated 0.74g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.15g, end-user device 0.57g.
Got: 0.74g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 88.5 kg CO2/year
With 10,000 page views per month, this page would generate approximately 88.5 kg of CO2 annually — equivalent to charging 11059 smartphones.
Info::
Green hosting reduces data center emissions
0.74g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 47% of websites
Sustainable Web Design model v4 · Page size: 3.1 MB
Your site
0.74g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.15g
End-user device
0.57g
At 10,000 monthly views: Monthly: 7.4 kg · Annual: 88.5 kg · ≈ 11059 smartphone charges
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Apache HTTP Server uses renewable energy
Info::
Apache HTTP Server: Verified by the Green Web Foundation
Info::
Google Cloud CDN: Inherits Google Cloud regional renewable mix
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 Apache HTTP Server✓CDN Google Cloud CDN✗
Apache HTTP Server: Verified by the Green Web Foundation
Google Cloud CDN: Inherits Google Cloud regional renewable mix
Based on known provider commitments. Verify at thegreenwebfoundation.org
BTransfer Efficiency78% efficientREVIEW
Transfer Efficiency
78% efficient
78% efficient
Info::
Transfer efficiency: 78%
An estimated 704 KB (22%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 704 KB of unused JavaScript. This wasted data produces 0.16g of unnecessary CO2 per page view.
Total waste: 704 KB (22% of page weight)
Unused JS 704 KB
0.16g unnecessary CO2 per visit
Actual transfer 3189 KB
Theoretical minimum 2484 KB
Potential savings 704 KB (0.16g CO2)
See Deep Analysis sections above for specific optimizations.
A+Repeat Visit Weight84% cachedPASS
Repeat Visit Weight
84% cached
84% cached
Info::
84% reduction on repeat visits
Returning visitors download only 524 KB (vs 3189 KB first visit). 167 of 171 resources are served from browser cache, saving 0.62g CO2 per repeat visit.
Info::
Repeat visit: 0.12g CO2 (first visit: 0.74g)
First visit
3189 KB
Repeat visit
524 KB
84% reduction on repeat visits
Saving 0.62g CO2 per returning visitor
167 resources served from cache · 4 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.