https://unicen.edu.ar
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
2
PASS
2
INFO
1
Checks
82 PASS 2 REVIEW 3 FIX
FCO2 Per Page LoadAction4.15g CO2 per viewFIX
CO2 Per Page Load
Action4.15g CO2 per view
4.15g CO2 per view
Critical::
4.15g CO2 per page view
This page transfers 14.7 MB, producing an estimated 4.15g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.77g, network 0.72g, end-user device 2.67g.
Got: 4.15g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 498.3 kg CO2/year
With 10,000 page views per month, this page would generate approximately 498.3 kg of CO2 annually — equivalent to charging 62293 smartphones.
4.15g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 14.7 MB
Your site
4.15g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.77g
Network
0.72g
End-user device
2.67g
At 10,000 monthly views: Monthly: 41.5 kg · Annual: 498.3 kg · ≈ 62293 smartphone charges
DGreen HostingActionNot greenFIX
Green Hosting
ActionNot green
Not green
Info::
No confirmed renewable energy commitment detected
Consider providers like Cloudflare, Google Cloud, or Vercel that match 100% of their energy use with renewables.
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 HostingNot Green Hosted
Hosting Apache HTTP Server✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
4.15g 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
4.15g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 592% more
vs Target 731% more
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.
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 Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 144 KB (vs 15016 KB first visit). 136 of 138 resources are served from browser cache, saving 4.11g CO2 per repeat visit.
Info::
Repeat visit: 0.04g CO2 (first visit: 4.15g)
First visit
15016 KB
Repeat visit
144 KB
99% reduction on repeat visits
Saving 4.11g CO2 per returning visitor
136 resources served from cache · 2 resources re-downloaded
A+Transfer Efficiency100% efficientPASS
Transfer Efficiency
100% efficient
100% efficient
Info::
Transfer efficiency: 100%
Only 73 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 73 KB (0% of page weight)
Unused JS 73 KB
0.02g unnecessary CO2 per visit
Actual transfer 15016 KB
Theoretical minimum 14942 KB
Potential savings 73 KB (0.02g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization127 images, 4271 KB total, 225 KB wastedINFO
Image Optimization
127 images, 4271 KB total, 225 KB wasted
Image Optimization Audit
Total Images
127
Total Size
4271 KB
Oversized
6
Wasted
225 KB
104 missing dimensions 122 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.