https://webagencyadvisor.it
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
78
GRADE
C
FIX
1
REVIEW
3
PASS
3
INFO
1
Checks
83 PASS 3 REVIEW 1 FIX
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
BTransfer Efficiency81% efficientREVIEW
Transfer Efficiency
81% efficient
81% efficient
Info::
Transfer efficiency: 81%
An estimated 154 KB (19%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 154 KB of unused JavaScript. This wasted data produces 0.04g of unnecessary CO2 per page view.
Total waste: 154 KB (19% of page weight)
Unused JS 154 KB
0.04g unnecessary CO2 per visit
Actual transfer 807 KB
Theoretical minimum 653 KB
Potential savings 154 KB (0.04g CO2)
See Deep Analysis sections above for specific optimizations.
CWeb Font Weight VariantsAction10 font weights loaded across 1 famil(y/ies)REVIEW
Web Font Weight Variants
Action10 font weights loaded across 1 famil(y/ies)
10 font weights loaded across 1 famil(y/ies)
Warning::
10 font weights loaded -- likely 100+ KB of unused payload
Loading 10 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: Inter.
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
ACO2 Per Page Load0.22g CO2 per viewPASS
CO2 Per Page Load
0.22g CO2 per view
0.22g CO2 per view
Info::
0.22g CO2 per page view
This page transfers 0.8 MB, producing an estimated 0.22g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.04g, end-user device 0.14g.
Got: 0.22g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 26.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 26.8 kg of CO2 annually — equivalent to charging 3351 smartphones.
0.22g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 88% of websites
Sustainable Web Design model v4 · Page size: 0.8 MB
Your site
0.22g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.04g
Network
0.04g
End-user device
0.14g
At 10,000 monthly views: Monthly: 2.2 kg · Annual: 26.8 kg · ≈ 3351 smartphone charges
A+Repeat Visit Weight97% cachedPASS
Repeat Visit Weight
97% cached
97% cached
Info::
97% reduction on repeat visits
Returning visitors download only 20 KB (vs 807 KB first visit). 44 of 45 resources are served from browser cache, saving 0.22g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.22g)
First visit
807 KB
Repeat visit
20 KB
97% reduction on repeat visits
Saving 0.22g CO2 per returning visitor
44 resources served from cache · 1 resources re-downloaded
ACarbon Budget12th percentilePASS
Carbon Budget
12th percentile
12th percentile
Info::
0.22g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 88% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 12th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.22g
12th percentile
Cleaner than 88% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 63% cleaner ✓
vs Target 55% cleaner ✓
Image Optimization46 images, 430 KB total, 265 KB wastedINFO
Image Optimization
46 images, 430 KB total, 265 KB wasted
Image Optimization Audit
Total Images
46
Total Size
430 KB
Oversized
19
Wasted
265 KB
46 missing dimensions 45 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.