https://barbaraferreiraadv.com.br
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
85
GRADE
B
FIX
1
REVIEW
2
PASS
4
INFO
1
Checks
84 PASS 2 REVIEW 1 FIX
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
CWeb Font Weight VariantsAction72 font weights loaded across 4 famil(y/ies)REVIEW
Web Font Weight Variants
Action72 font weights loaded across 4 famil(y/ies)
72 font weights loaded across 4 famil(y/ies)
Warning::
72 font weights loaded -- likely 100+ KB of unused payload
Loading 72 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: Montserrat, Playfair Display, Roboto, Roboto Slab.
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+CO2 Per Page Load0.09g CO2 per viewPASS
CO2 Per Page Load
0.09g CO2 per view
0.09g CO2 per view
Info::
0.09g CO2 per page view
This page transfers 0.3 MB, producing an estimated 0.09g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.02g, end-user device 0.06g.
Got: 0.09g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 11.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 11.2 kg of CO2 annually — equivalent to charging 1398 smartphones.
0.09g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 90% of websites
Sustainable Web Design model v4 · Page size: 0.3 MB
Your site
0.09g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.02g
End-user device
0.06g
At 10,000 monthly views: Monthly: 0.9 kg · Annual: 11.2 kg · ≈ 1398 smartphone charges
A+Repeat Visit Weight96% cachedPASS
Repeat Visit Weight
96% cached
96% cached
Info::
96% reduction on repeat visits
Returning visitors download only 12 KB (vs 337 KB first visit). 36 of 37 resources are served from browser cache, saving 0.09g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.09g)
First visit
337 KB
Repeat visit
12 KB
96% reduction on repeat visits
Saving 0.09g CO2 per returning visitor
36 resources served from cache · 1 resources re-downloaded
A+Carbon Budget10th percentilePASS
Carbon Budget
10th percentile
10th percentile
Info::
0.09g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 90% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 10th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.09g
10th percentile
Cleaner than 90% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 84% cleaner ✓
vs Target 81% cleaner ✓
A+Transfer Efficiency94% efficientPASS
Transfer Efficiency
94% efficient
94% efficient
Info::
Transfer efficiency: 94%
Only 20 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 20 KB (6% of page weight)
Unused JS 20 KB
0.01g unnecessary CO2 per visit
Actual transfer 337 KB
Theoretical minimum 316 KB
Potential savings 20 KB (0.01g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization2 images, 49 KB total, 14 KB wastedINFO
Image Optimization
2 images, 49 KB total, 14 KB wasted
Image Optimization Audit
Total Images
2
Total Size
49 KB
Oversized
1
Wasted
14 KB
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.