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https://birsayt.az

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
66
GRADE
D
FIX
3
REVIEW
2
PASS
2
INFO
1
Device:
Mobile Desktop
Checks
8
2 PASS 2 REVIEW 3 FIX
F
CO2 Per Page Load
Action
1.50g CO2 per view
FIX
1.50g CO2 per view
Warning::
1.50g CO2 per page view
This page transfers 5.3 MB, producing an estimated 1.50g 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: 1.50g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 180.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 180.6 kg of CO2 annually — equivalent to charging 22569 smartphones.

1.50g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 25% of websites

Sustainable Web Design model v4 · Page size: 5.3 MB

Your site
1.50g
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: 15.0 kg · Annual: 180.6 kg · ≈ 22569 smartphone charges
D
Green Hosting
Action
Unknown
FIX
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

F
Carbon Budget
Action
75th percentile
FIX
75th percentile
Warning::
1.50g CO2 — above the median website (0.60g)
Heavier than an estimated 25% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 75th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

1.50g

75th percentile

Cleaner than 25% of websites

✗ Above the median website

vs Median 151% more
vs Target 201% more
B
Web Font Weight Variants
No detectable Google Fonts weights
REVIEW
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.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Repeat Visit Weight
96% cached
PASS
96% cached
Info::
96% reduction on repeat visits
Returning visitors download only 206 KB (vs 5440 KB first visit). 228 of 229 resources are served from browser cache, saving 1.45g CO2 per repeat visit.
Info::
Repeat visit: 0.06g CO2 (first visit: 1.50g)
First visit
5440 KB
Repeat visit
206 KB

96% reduction on repeat visits

Saving 1.45g CO2 per returning visitor

228 resources served from cache · 1 resources re-downloaded

A+
Transfer Efficiency
92% efficient
PASS
92% efficient
Info::
Transfer efficiency: 92%
Only 435 KB of potential savings identified. Your page is well-optimized for size.
92% efficient

Total waste: 435 KB (8% of page weight)

Unused JS 435 KB

0.12g unnecessary CO2 per visit

Actual transfer 5440 KB
Theoretical minimum 5005 KB
Potential savings 435 KB (0.12g CO2)

See Deep Analysis sections above for specific optimizations.

Image Optimization
49 images, 2706 KB total, 2561 KB wasted
INFO

Image Optimization Audit

Total Images

49

Total Size

2706 KB

Oversized

5

Wasted

2561 KB

5 missing dimensions 18 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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