https://www.colassoadvogados.com.br
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
90
GRADE
A
FIX
2
REVIEW
1
PASS
4
INFO
1
Checks
84 PASS 1 REVIEW 2 FIX
DCO2 Per Page LoadAction1.37g CO2 per viewFIX
CO2 Per Page Load
Action1.37g CO2 per view
1.37g CO2 per view
Warning::
1.37g CO2 per page view
This page transfers 5.8 MB, producing an estimated 1.37g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.03g, network 0.28g, end-user device 1.05g.
Got: 1.37g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 164.3 kg CO2/year
With 10,000 page views per month, this page would generate approximately 164.3 kg of CO2 annually — equivalent to charging 20535 smartphones.
Info::
Green hosting reduces data center emissions
1.37g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 29% of websites
Sustainable Web Design model v4 · Page size: 5.8 MB
Your site
1.37g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.03g
Network
0.28g
End-user device
1.05g
At 10,000 monthly views: Monthly: 13.7 kg · Annual: 164.3 kg · ≈ 20535 smartphone charges
FCarbon BudgetAction71th percentileFIX
Carbon Budget
Action71th percentile
71th percentile
Warning::
1.37g CO2 — above the median website (0.60g)
Heavier than an estimated 29% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 71th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.37g
71st percentile
Cleaner than 29% of websites
✗ Above the median website
vs Median 128% more
vs Target 174% 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.
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Google Cloud, CDN: Fastly
Info::
Google Cloud: Verified by the Green Web Foundation
Info::
Fastly: 100% renewable energy for edge network
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 Google Cloud✓CDN Fastly✓
Google Cloud: Verified by the Green Web Foundation
Fastly: 100% renewable energy for edge network
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 112 KB (vs 5922 KB first visit). 183 of 184 resources are served from browser cache, saving 1.34g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 1.37g)
First visit
5922 KB
Repeat visit
112 KB
98% reduction on repeat visits
Saving 1.34g CO2 per returning visitor
183 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency96% efficientPASS
Transfer Efficiency
96% efficient
96% efficient
Info::
Transfer efficiency: 96%
Only 220 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 220 KB (4% of page weight)
Unused JS 220 KB
0.05g unnecessary CO2 per visit
Actual transfer 5922 KB
Theoretical minimum 5702 KB
Potential savings 220 KB (0.05g CO2)
See Deep Analysis sections above for specific optimizations.
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: Google Cloud
Image Optimization2 images, 32 KB total, 0 KB wastedINFO
Image Optimization
2 images, 32 KB total, 0 KB wasted
Image Optimization Audit
Total Images
2
Total Size
32 KB
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.