https://banco.bradesco
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
65
GRADE
D
FIX
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
DCO2 Per Page LoadAction0.94g CO2 per viewFIX
CO2 Per Page Load
Action0.94g CO2 per view
0.94g CO2 per view
Info::
0.94g CO2 per page view
This page transfers 3.3 MB, producing an estimated 0.94g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.17g, network 0.16g, end-user device 0.60g.
Got: 0.94g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 112.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 112.6 kg of CO2 annually — equivalent to charging 14075 smartphones.
0.94g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 41% of websites
Sustainable Web Design model v4 · Page size: 3.3 MB
Your site
0.94g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.17g
Network
0.16g
End-user device
0.60g
At 10,000 monthly views: Monthly: 9.4 kg · Annual: 112.6 kg · ≈ 14075 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::
Akamai: Committed to 50% renewable by 2030
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 Not identified✗CDN Akamai✗
Akamai: Committed to 50% renewable by 2030
Based on known provider commitments. Verify at thegreenwebfoundation.org
DCarbon BudgetAction59th percentileFIX
Carbon Budget
Action59th percentile
59th percentile
Warning::
0.94g CO2 — above the median website (0.60g)
Heavier than an estimated 41% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 59th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.94g
59th percentile
Cleaner than 41% of websites
✗ Above the median website
vs Median 56% more
vs Target 88% more
CTransfer EfficiencyAction70% efficientREVIEW
Transfer Efficiency
Action70% efficient
70% efficient
Warning::
Transfer efficiency: 70%
An estimated 1003 KB (30%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1003 KB of unused JavaScript. This wasted data produces 0.28g of unnecessary CO2 per page view.
Total waste: 1003 KB (30% of page weight)
Unused JS 1003 KB
0.28g unnecessary CO2 per visit
Actual transfer 3393 KB
Theoretical minimum 2389 KB
Potential savings 1003 KB (0.28g 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.
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 28 KB (vs 3393 KB first visit). 208 of 211 resources are served from browser cache, saving 0.93g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.94g)
First visit
3393 KB
Repeat visit
28 KB
99% reduction on repeat visits
Saving 0.93g CO2 per returning visitor
208 resources served from cache · 3 resources re-downloaded
Image Optimization74 images, 14 KB total, 0 KB wastedINFO
Image Optimization
74 images, 14 KB total, 0 KB wasted
Image Optimization Audit
Total Images
74
Total Size
14 KB
2 missing alt text 38 missing dimensions 23 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.