https://conengagroup.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
60
GRADE
D
FIX
3
REVIEW
2
PASS
2
INFO
1
Checks
82 PASS 2 REVIEW 3 FIX
FCO2 Per Page LoadAction2.96g CO2 per viewFIX
CO2 Per Page Load
Action2.96g CO2 per view
2.96g CO2 per view
Critical::
2.96g CO2 per page view
This page transfers 10.4 MB, producing an estimated 2.96g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.55g, network 0.51g, end-user device 1.90g.
Got: 2.96g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 354.9 kg CO2/year
With 10,000 page views per month, this page would generate approximately 354.9 kg of CO2 annually — equivalent to charging 44359 smartphones.
2.96g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 10.4 MB
Your site
2.96g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.55g
Network
0.51g
End-user device
1.90g
At 10,000 monthly views: Monthly: 29.6 kg · Annual: 354.9 kg · ≈ 44359 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::
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 GoDaddy✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
2.96g CO2 — above the median website (0.60g)
Heavier than an estimated 5% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 95th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
2.96g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 393% more
vs Target 491% 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.
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 91 KB (vs 10693 KB first visit). 351 of 353 resources are served from browser cache, saving 2.93g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 2.96g)
First visit
10693 KB
Repeat visit
91 KB
99% reduction on repeat visits
Saving 2.93g CO2 per returning visitor
351 resources served from cache · 2 resources re-downloaded
A+Transfer Efficiency98% efficientPASS
Transfer Efficiency
98% efficient
98% efficient
Info::
Transfer efficiency: 98%
Only 201 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 201 KB (2% of page weight)
Unused JS 201 KB
0.06g unnecessary CO2 per visit
Actual transfer 10693 KB
Theoretical minimum 10491 KB
Potential savings 201 KB (0.06g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization110 images, 12620 KB total, 639 KB wastedINFO
Image Optimization
110 images, 12620 KB total, 639 KB wasted
Image Optimization Audit
Total Images
110
Total Size
12620 KB
Oversized
6
Wasted
639 KB
107 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.