https://studioglass.ua/?srsltid=AfmBOorR_9oMrvnyWn3YEJOwuhmKA3daecu2_JGxPxX23K_k9dm-TCQT
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
60
GRADE
D
FIX
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
FCO2 Per Page LoadAction3.00g CO2 per viewFIX
CO2 Per Page Load
Action3.00g CO2 per view
3.00g CO2 per view
Critical::
3.00g CO2 per page view
This page transfers 10.6 MB, producing an estimated 3.00g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.56g, network 0.52g, end-user device 1.93g.
Got: 3.00g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 360.1 kg CO2/year
With 10,000 page views per month, this page would generate approximately 360.1 kg of CO2 annually — equivalent to charging 45014 smartphones.
3.00g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 10.6 MB
Your site
3.00g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.56g
Network
0.52g
End-user device
1.93g
At 10,000 monthly views: Monthly: 30.0 kg · Annual: 360.1 kg · ≈ 45014 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
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
3.00g CO2 — above the median website (0.60g)
Heavier than an estimated 5% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 95th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
3.00g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 400% more
vs Target 500% more
BTransfer Efficiency84% efficientREVIEW
Transfer Efficiency
84% efficient
84% efficient
Info::
Transfer efficiency: 84%
An estimated 1760 KB (16%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1760 KB of unused JavaScript. This wasted data produces 0.49g of unnecessary CO2 per page view.
Total waste: 1760 KB (16% of page weight)
Unused JS 1760 KB
0.49g unnecessary CO2 per visit
Actual transfer 10850 KB
Theoretical minimum 9090 KB
Potential savings 1760 KB (0.49g CO2)
See Deep Analysis sections above for specific optimizations.
BWeb Font Weight Variants7 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
7 font weights loaded across 2 famil(y/ies)
7 font weights loaded across 2 famil(y/ies)
Info::
7 font weights loaded -- review whether all are used
5+ weights for a single page is often more than needed. Compare against the actual font-weight CSS rules in your stylesheets; trim weights that aren't applied to any element. Affected families: Open Sans, Roboto.
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 Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 21 KB (vs 10850 KB first visit). 181 of 183 resources are served from browser cache, saving 2.99g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 3.00g)
First visit
10850 KB
Repeat visit
21 KB
100% reduction on repeat visits
Saving 2.99g CO2 per returning visitor
181 resources served from cache · 2 resources re-downloaded
Image Optimization54 images, 5521 KB total, 4242 KB wastedINFO
Image Optimization
54 images, 5521 KB total, 4242 KB wasted
Image Optimization Audit
Total Images
54
Total Size
5521 KB
Oversized
19
Wasted
4242 KB
54 missing dimensions 44 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.