https://www.aljazeera.net
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
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
DCO2 Per Page LoadAction1.21g CO2 per viewFIX
CO2 Per Page Load
Action1.21g CO2 per view
1.21g CO2 per view
Warning::
1.21g CO2 per page view
This page transfers 4.3 MB, producing an estimated 1.21g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.22g, network 0.21g, end-user device 0.78g.
Got: 1.21g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 145.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 145.2 kg of CO2 annually — equivalent to charging 18152 smartphones.
1.21g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 33% of websites
Sustainable Web Design model v4 · Page size: 4.3 MB
Your site
1.21g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.22g
Network
0.21g
End-user device
0.78g
At 10,000 monthly views: Monthly: 12.1 kg · Annual: 145.2 kg · ≈ 18152 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 BudgetAction67th percentileFIX
Carbon Budget
Action67th percentile
67th percentile
Warning::
1.21g CO2 — above the median website (0.60g)
Heavier than an estimated 33% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 67th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.21g
67th percentile
Cleaner than 33% of websites
✗ Above the median website
vs Median 102% more
vs Target 142% more
BTransfer Efficiency79% efficientREVIEW
Transfer Efficiency
79% efficient
79% efficient
Info::
Transfer efficiency: 79%
An estimated 908 KB (21%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 908 KB of unused JavaScript. This wasted data produces 0.25g of unnecessary CO2 per page view.
Total waste: 908 KB (21% of page weight)
Unused JS 908 KB
0.25g unnecessary CO2 per visit
Actual transfer 4375 KB
Theoretical minimum 3467 KB
Potential savings 908 KB (0.25g 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.
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 Weight92% cachedPASS
Repeat Visit Weight
92% cached
92% cached
Info::
92% reduction on repeat visits
Returning visitors download only 343 KB (vs 4375 KB first visit). 125 of 129 resources are served from browser cache, saving 1.12g CO2 per repeat visit.
Info::
Repeat visit: 0.10g CO2 (first visit: 1.21g)
First visit
4375 KB
Repeat visit
343 KB
92% reduction on repeat visits
Saving 1.12g CO2 per returning visitor
125 resources served from cache · 4 resources re-downloaded
Image Optimization55 images, 407 KB total, 344 KB wastedINFO
Image Optimization
55 images, 407 KB total, 344 KB wasted
Image Optimization Audit
Total Images
55
Total Size
407 KB
Oversized
23
Wasted
344 KB
5 missing alt text 54 missing dimensions 17 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.