https://alfajrkeffiyeh.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
78
GRADE
C
FIX
2
REVIEW
2
PASS
3
INFO
1
Checks
83 PASS 2 REVIEW 2 FIX
DCO2 Per Page LoadAction0.87g CO2 per viewFIX
CO2 Per Page Load
Action0.87g CO2 per view
0.87g CO2 per view
Info::
0.87g CO2 per page view
This page transfers 3.7 MB, producing an estimated 0.87g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.18g, end-user device 0.67g.
Got: 0.87g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 104.3 kg CO2/year
With 10,000 page views per month, this page would generate approximately 104.3 kg of CO2 annually — equivalent to charging 13037 smartphones.
Info::
Green hosting reduces data center emissions
0.87g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 43% of websites
Sustainable Web Design model v4 · Page size: 3.7 MB
Your site
0.87g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.02g
Network
0.18g
End-user device
0.67g
At 10,000 monthly views: Monthly: 8.7 kg · Annual: 104.3 kg · ≈ 13037 smartphone charges
DCarbon BudgetAction57th percentileFIX
Carbon Budget
Action57th percentile
57th percentile
Warning::
0.87g CO2 — above the median website (0.60g)
Heavier than an estimated 43% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 57th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.87g
57th percentile
Cleaner than 43% of websites
✗ Above the median website
vs Median 45% more
vs Target 74% more
BTransfer Efficiency86% efficientREVIEW
Transfer Efficiency
86% efficient
86% efficient
Info::
Transfer efficiency: 86%
An estimated 520 KB (14%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 520 KB of unused JavaScript. This wasted data produces 0.12g of unnecessary CO2 per page view.
Total waste: 520 KB (14% of page weight)
Unused JS 520 KB
0.12g unnecessary CO2 per visit
Actual transfer 3760 KB
Theoretical minimum 3239 KB
Potential savings 520 KB (0.12g CO2)
See Deep Analysis sections above for specific optimizations.
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: GoDaddy, CDN: Cloudflare
Info::
GoDaddy: Verified by the Green Web Foundation
Info::
Cloudflare: 100% renewable energy for global network since 2019
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 GoDaddy✓CDN Cloudflare✓
GoDaddy: Verified by the Green Web Foundation
Cloudflare: 100% renewable energy for global network since 2019
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 54 KB (vs 3760 KB first visit). 212 of 216 resources are served from browser cache, saving 0.86g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.87g)
First visit
3760 KB
Repeat visit
54 KB
99% reduction on repeat visits
Saving 0.86g CO2 per returning visitor
212 resources served from cache · 4 resources re-downloaded
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: Cloudflare
Image Optimization16 images, 418 KB total, 82 KB wastedINFO
Image Optimization
16 images, 418 KB total, 82 KB wasted
Image Optimization Audit
Total Images
16
Total Size
418 KB
Oversized
1
Wasted
82 KB
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.