https://servtop.com.br
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
74
GRADE
C
FIX
1
REVIEW
5
PASS
1
INFO
1
Checks
81 PASS 5 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
BCO2 Per Page Load0.63g CO2 per viewREVIEW
CO2 Per Page Load
0.63g CO2 per view
0.63g CO2 per view
Info::
0.63g CO2 per page view
This page transfers 2.2 MB, producing an estimated 0.63g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.12g, network 0.11g, end-user device 0.41g.
Got: 0.63g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 75.9 kg CO2/year
With 10,000 page views per month, this page would generate approximately 75.9 kg of CO2 annually — equivalent to charging 9488 smartphones.
0.63g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 50% of websites
Sustainable Web Design model v4 · Page size: 2.2 MB
Your site
0.63g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.12g
Network
0.11g
End-user device
0.41g
At 10,000 monthly views: Monthly: 6.3 kg · Annual: 75.9 kg · ≈ 9488 smartphone charges
BCarbon Budget50th percentileREVIEW
Carbon Budget
50th percentile
50th percentile
Warning::
0.63g CO2 — above the median website (0.60g)
Heavier than an estimated 50% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 50th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.63g
50th percentile
Cleaner than 50% of websites
✗ Above the median website
vs Median 5% more
vs Target 27% more
BTransfer Efficiency79% efficientREVIEW
Transfer Efficiency
79% efficient
79% efficient
Info::
Transfer efficiency: 79%
An estimated 487 KB (21%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 487 KB of unused JavaScript. This wasted data produces 0.13g of unnecessary CO2 per page view.
Total waste: 487 KB (21% of page weight)
Unused JS 487 KB
0.13g unnecessary CO2 per visit
Actual transfer 2287 KB
Theoretical minimum 1799 KB
Potential savings 487 KB (0.13g CO2)
See Deep Analysis sections above for specific optimizations.
BWeb Font Weight Variants6 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
6 font weights loaded across 2 famil(y/ies)
6 font weights loaded across 2 famil(y/ies)
Info::
6 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: Inter, Libre Caslon Text.
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 1 KB (vs 2287 KB first visit). 26 of 27 resources are served from browser cache, saving 0.63g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.63g)
First visit
2287 KB
Repeat visit
1 KB
100% reduction on repeat visits
Saving 0.63g CO2 per returning visitor
26 resources served from cache · 1 resources re-downloaded
Image Optimization37 images, 1172 KB total, 762 KB wastedINFO
Image Optimization
37 images, 1172 KB total, 762 KB wasted
Image Optimization Audit
Total Images
37
Total Size
1172 KB
Oversized
4
Wasted
762 KB
37 missing dimensions 3 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.