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 Load0.55g CO2 per viewREVIEW
CO2 Per Page Load
0.55g CO2 per view
0.55g CO2 per view
Info::
0.55g CO2 per page view
This page transfers 1.9 MB, producing an estimated 0.55g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.10g, network 0.09g, end-user device 0.35g.
Got: 0.55g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 65.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 65.6 kg of CO2 annually — equivalent to charging 8198 smartphones.
0.55g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 56% of websites
Sustainable Web Design model v4 · Page size: 1.9 MB
Your site
0.55g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.10g
Network
0.09g
End-user device
0.35g
At 10,000 monthly views: Monthly: 5.5 kg · Annual: 65.6 kg · ≈ 8198 smartphone charges
BCarbon Budget44th percentileREVIEW
Carbon Budget
44th percentile
44th percentile
Info::
0.55g CO2 — below the median website (0.60g)
Better than an estimated 56% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
Info::
Estimated 44th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.55g
44th percentile
Cleaner than 56% of websites
✗ Above the median website
vs Median 9% cleaner ✓
vs Target 9% more
BTransfer Efficiency86% efficientREVIEW
Transfer Efficiency
86% efficient
86% efficient
Info::
Transfer efficiency: 86%
An estimated 268 KB (14%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 268 KB of unused JavaScript. This wasted data produces 0.07g of unnecessary CO2 per page view.
Total waste: 268 KB (14% of page weight)
Unused JS 268 KB
0.07g unnecessary CO2 per visit
Actual transfer 1976 KB
Theoretical minimum 1707 KB
Potential savings 268 KB (0.07g 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 1976 KB first visit). 24 of 25 resources are served from browser cache, saving 0.55g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.55g)
First visit
1976 KB
Repeat visit
1 KB
100% reduction on repeat visits
Saving 0.55g CO2 per returning visitor
24 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.