https://wikiauthoritygroup.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
66
GRADE
D
FIX
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
DCO2 Per Page LoadAction1.16g CO2 per viewFIX
CO2 Per Page Load
Action1.16g CO2 per view
1.16g CO2 per view
Warning::
1.16g CO2 per page view
This page transfers 4.1 MB, producing an estimated 1.16g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.21g, network 0.20g, end-user device 0.74g.
Got: 1.16g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 139.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 139.2 kg of CO2 annually — equivalent to charging 17398 smartphones.
1.16g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 35% of websites
Sustainable Web Design model v4 · Page size: 4.1 MB
Your site
1.16g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.21g
Network
0.20g
End-user device
0.74g
At 10,000 monthly views: Monthly: 11.6 kg · Annual: 139.2 kg · ≈ 17398 smartphone charges
DGreen HostingActionUnknownFIX
Green Hosting
ActionUnknown
Unknown
Info::
Hosting provider could not be identified
Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
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 HostingUnable to Determine
Hosting Not identified✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
DCarbon BudgetAction65th percentileFIX
Carbon Budget
Action65th percentile
65th percentile
Warning::
1.16g CO2 — above the median website (0.60g)
Heavier than an estimated 35% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 65th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.16g
65th percentile
Cleaner than 35% of websites
✗ Above the median website
vs Median 93% more
vs Target 132% more
BTransfer Efficiency87% efficientREVIEW
Transfer Efficiency
87% efficient
87% efficient
Info::
Transfer efficiency: 87%
An estimated 562 KB (13%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 562 KB of unused JavaScript. This wasted data produces 0.16g of unnecessary CO2 per page view.
Total waste: 562 KB (13% of page weight)
Unused JS 562 KB
0.16g unnecessary CO2 per visit
Actual transfer 4193 KB
Theoretical minimum 3631 KB
Potential savings 562 KB (0.16g CO2)
See Deep Analysis sections above for specific optimizations.
CWeb Font Weight VariantsAction8 font weights loaded across 4 famil(y/ies)REVIEW
Web Font Weight Variants
Action8 font weights loaded across 4 famil(y/ies)
8 font weights loaded across 4 famil(y/ies)
Warning::
8 font weights loaded -- likely 100+ KB of unused payload
Loading 8 font weights typically transfers 200-400 KB just for fonts. Most pages legitimately use 2-3 weights (regular + bold, maybe medium). Audit which weights your stylesheet actually applies and trim the Google Fonts URL accordingly. Affected families: Cormorant Garamond, Geist, Instrument Serif, JetBrains Mono.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 103 KB (vs 4193 KB first visit). 45 of 46 resources are served from browser cache, saving 1.13g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 1.16g)
First visit
4193 KB
Repeat visit
103 KB
98% reduction on repeat visits
Saving 1.13g CO2 per returning visitor
45 resources served from cache · 1 resources re-downloaded
Image Optimization11 images, 5308 KB total, 2649 KB wastedINFO
Image Optimization
11 images, 5308 KB total, 2649 KB wasted
Image Optimization Audit
Total Images
11
Total Size
5308 KB
Oversized
1
Wasted
2649 KB
11 missing dimensions 9 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.