https://goneo.de
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
90
GRADE
A
FIX
0
REVIEW
1
PASS
5
INFO
0
Checks
65 PASS 1 REVIEW
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::
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 Not identified✗
Apache HTTP Server: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
ACO2 Per Page Load0.25g CO2 per viewPASS
CO2 Per Page Load
0.25g CO2 per view
0.25g CO2 per view
Info::
0.25g CO2 per page view
This page transfers 1.0 MB, producing an estimated 0.25g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.05g, end-user device 0.19g.
Got: 0.25g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 29.7 kg CO2/year
With 10,000 page views per month, this page would generate approximately 29.7 kg of CO2 annually — equivalent to charging 3714 smartphones.
Info::
Green hosting reduces data center emissions
0.25g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 86% of websites
Sustainable Web Design model v4 · Page size: 1.0 MB
Your site
0.25g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.01g
Network
0.05g
End-user device
0.19g
At 10,000 monthly views: Monthly: 2.5 kg · Annual: 29.7 kg · ≈ 3714 smartphone charges
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 23 KB (vs 1071 KB first visit). 55 of 56 resources are served from browser cache, saving 0.24g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.25g)
First visit
1071 KB
Repeat visit
23 KB
98% reduction on repeat visits
Saving 0.24g CO2 per returning visitor
55 resources served from cache · 1 resources re-downloaded
ACarbon Budget14th percentilePASS
Carbon Budget
14th percentile
14th percentile
Info::
0.25g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 86% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 14th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.25g
14th percentile
Cleaner than 86% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 59% cleaner ✓
vs Target 50% cleaner ✓
A+Transfer Efficiency98% efficientPASS
Transfer Efficiency
98% efficient
98% efficient
Info::
Transfer efficiency: 98%
Only 26 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 26 KB (2% of page weight)
Unused JS 26 KB
0.01g unnecessary CO2 per visit
Actual transfer 1071 KB
Theoretical minimum 1044 KB
Potential savings 26 KB (0.01g 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: goneo Internet GmbH
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.