https://seonapsi.com
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
4
PASS
2
INFO
1
Checks
82 PASS 4 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 48% 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 11063 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 · ≈ 11063 smartphone charges
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
VHosting Solution s.r.l. uses renewable energy
Info::
VHosting Solution s.r.l.: 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 VHosting Solution s.r.l.✓CDN Not identified✗
VHosting Solution s.r.l.: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
BTransfer Efficiency78% efficientREVIEW
Transfer Efficiency
78% efficient
78% efficient
Info::
Transfer efficiency: 78%
An estimated 717 KB (22%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 717 KB of unused JavaScript. This wasted data produces 0.17g of unnecessary CO2 per page view.
Total waste: 717 KB (22% of page weight)
Unused JS 717 KB
0.17g unnecessary CO2 per visit
Actual transfer 3191 KB
Theoretical minimum 2473 KB
Potential savings 717 KB (0.17g CO2)
See Deep Analysis sections above for specific optimizations.
BWeb Font Weight VariantsNo detectable Google Fonts weightsREVIEW
Web Font Weight Variants
No detectable Google Fonts weights
No detectable Google Fonts weights
Info::
No detectable Google Fonts weights
The analyzer detects font weights via Google Fonts URL parameters (~70% of font-using sites). Self-hosted fonts and non-Google CDN fonts aren't visible to URL-based detection. If you self-host fonts, manually audit how many @font-face weights you ship -- 2-3 weights per family is typically enough; 5+ is usually unused payload.
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 62 KB (vs 3191 KB first visit). 72 of 74 resources are served from browser cache, saving 0.72g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.74g)
First visit
3191 KB
Repeat visit
62 KB
98% reduction on repeat visits
Saving 0.72g CO2 per returning visitor
72 resources served from cache · 2 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: VHosting Solution s.r.l.
Image Optimization33 images, 1600 KB total, 104 KB wastedINFO
Image Optimization
33 images, 1600 KB total, 104 KB wasted
Image Optimization Audit
Total Images
33
Total Size
1600 KB
Oversized
4
Wasted
104 KB
6 missing dimensions 10 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.