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 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 3.1 MB, producing an estimated 0.87g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.16g, network 0.15g, end-user device 0.56g.
Got: 0.87g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 104.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 104.8 kg of CO2 annually — equivalent to charging 13097 smartphones.
0.87g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 43% of websites
Sustainable Web Design model v4 · Page size: 3.1 MB
Your site
0.87g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.16g
Network
0.15g
End-user device
0.56g
At 10,000 monthly views: Monthly: 8.7 kg · Annual: 104.8 kg · ≈ 13097 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 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 46% more
vs Target 75% more
BTransfer Efficiency88% efficientREVIEW
Transfer Efficiency
88% efficient
88% efficient
Info::
Transfer efficiency: 88%
An estimated 386 KB (12%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 386 KB of unused JavaScript. This wasted data produces 0.11g of unnecessary CO2 per page view.
Total waste: 386 KB (12% of page weight)
Unused JS 386 KB
0.11g unnecessary CO2 per visit
Actual transfer 3157 KB
Theoretical minimum 2770 KB
Potential savings 386 KB (0.11g 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 261 KB (vs 3157 KB first visit). 109 of 111 resources are served from browser cache, saving 0.80g CO2 per repeat visit.
Info::
Repeat visit: 0.07g CO2 (first visit: 0.87g)
First visit
3157 KB
Repeat visit
261 KB
92% reduction on repeat visits
Saving 0.80g CO2 per returning visitor
109 resources served from cache · 2 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.