http://www.tti-africa.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
70
GRADE
C
FIX
3
REVIEW
2
PASS
2
INFO
1
Checks
82 PASS 2 REVIEW 3 FIX
DCO2 Per Page LoadAction1.31g CO2 per viewFIX
CO2 Per Page Load
Action1.31g CO2 per view
1.31g CO2 per view
Warning::
1.31g CO2 per page view
This page transfers 4.6 MB, producing an estimated 1.31g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.24g, network 0.23g, end-user device 0.84g.
Got: 1.31g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 157.1 kg CO2/year
With 10,000 page views per month, this page would generate approximately 157.1 kg of CO2 annually — equivalent to charging 19635 smartphones.
1.31g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 30% of websites
Sustainable Web Design model v4 · Page size: 4.6 MB
Your site
1.31g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.24g
Network
0.23g
End-user device
0.84g
At 10,000 monthly views: Monthly: 13.1 kg · Annual: 157.1 kg · ≈ 19635 smartphone charges
DGreen HostingActionUnknownFIX
Green Hosting
ActionUnknown
Unknown
Info::
Hosting provider could not be identified
Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
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 HostingUnable to Determine
Hosting Not identified✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
DCarbon BudgetAction70th percentileFIX
Carbon Budget
Action70th percentile
70th percentile
Warning::
1.31g CO2 — above the median website (0.60g)
Heavier than an estimated 30% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 70th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.31g
70th percentile
Cleaner than 30% of websites
✗ Above the median website
vs Median 118% more
vs Target 162% more
CWeb Font Weight VariantsAction10 font weights loaded across 3 famil(y/ies)REVIEW
Web Font Weight Variants
Action10 font weights loaded across 3 famil(y/ies)
10 font weights loaded across 3 famil(y/ies)
Warning::
10 font weights loaded -- likely 100+ KB of unused payload
Loading 10 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: Cinzel, Inter, Outfit.
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 4733 KB first visit). 35 of 36 resources are served from browser cache, saving 1.31g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 1.31g)
First visit
4733 KB
Repeat visit
1 KB
100% reduction on repeat visits
Saving 1.31g CO2 per returning visitor
35 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency100% efficientPASS
Transfer Efficiency
100% efficient
100% efficient
Info::
Transfer efficiency: 100%
Only 20 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 20 KB (0% of page weight)
Unused JS 20 KB
0.01g unnecessary CO2 per visit
Actual transfer 4733 KB
Theoretical minimum 4712 KB
Potential savings 20 KB (0.01g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization27 images, 4288 KB total, 3748 KB wastedINFO
Image Optimization
27 images, 4288 KB total, 3748 KB wasted
Image Optimization Audit
Total Images
27
Total Size
4288 KB
Oversized
12
Wasted
3748 KB
26 missing dimensions 10 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.