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
60
GRADE
D
FIX
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
FCO2 Per Page LoadAction1.51g CO2 per viewFIX
CO2 Per Page Load
Action1.51g CO2 per view
1.51g CO2 per view
Warning::
1.51g CO2 per page view
This page transfers 5.3 MB, producing an estimated 1.51g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.28g, network 0.26g, end-user device 0.97g.
Got: 1.51g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 181.5 kg CO2/year
With 10,000 page views per month, this page would generate approximately 181.5 kg of CO2 annually — equivalent to charging 22682 smartphones.
1.51g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 24% of websites
Sustainable Web Design model v4 · Page size: 5.3 MB
Your site
1.51g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.28g
Network
0.26g
End-user device
0.97g
At 10,000 monthly views: Monthly: 15.1 kg · Annual: 181.5 kg · ≈ 22682 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
FCarbon BudgetAction76th percentileFIX
Carbon Budget
Action76th percentile
76th percentile
Warning::
1.51g CO2 — above the median website (0.60g)
Heavier than an estimated 24% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 76th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.51g
76th percentile
Cleaner than 24% of websites
✗ Above the median website
vs Median 152% more
vs Target 202% more
CTransfer EfficiencyAction75% efficientREVIEW
Transfer Efficiency
Action75% efficient
75% efficient
Warning::
Transfer efficiency: 75%
An estimated 1376 KB (25%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1376 KB of unused JavaScript. This wasted data produces 0.38g of unnecessary CO2 per page view.
Total waste: 1376 KB (25% of page weight)
Unused JS 1376 KB
0.38g unnecessary CO2 per visit
Actual transfer 5467 KB
Theoretical minimum 4091 KB
Potential savings 1376 KB (0.38g 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 Weight94% cachedPASS
Repeat Visit Weight
94% cached
94% cached
Info::
94% reduction on repeat visits
Returning visitors download only 344 KB (vs 5467 KB first visit). 142 of 146 resources are served from browser cache, saving 1.42g CO2 per repeat visit.
Info::
Repeat visit: 0.10g CO2 (first visit: 1.51g)
First visit
5467 KB
Repeat visit
344 KB
94% reduction on repeat visits
Saving 1.42g CO2 per returning visitor
142 resources served from cache · 4 resources re-downloaded
Image Optimization55 images, 559 KB total, 426 KB wastedINFO
Image Optimization
55 images, 559 KB total, 426 KB wasted
Image Optimization Audit
Total Images
55
Total Size
559 KB
Oversized
23
Wasted
426 KB
3 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.