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https://elevenlabs.io

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
83
GRADE
B
FIX
0
REVIEW
3
PASS
3
INFO
0
Device:
Mobile Desktop
Checks
6
3 PASS 3 REVIEW
B
Green Hosting
Green (hosting)
REVIEW
Green (hosting)
Info::
Google Cloud uses renewable energy
Info::
Google Cloud: Verified by the Green Web Foundation
Info::
Google Cloud CDN: Inherits Google Cloud regional renewable mix
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 Google Cloud✓CDN Google Cloud CDN✗

Google Cloud: Verified by the Green Web Foundation

Google Cloud CDN: Inherits Google Cloud regional renewable mix

Based on known provider commitments. Verify at thegreenwebfoundation.org

B
Carbon Budget
36th percentile
REVIEW
36th percentile
Info::
0.46g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 64% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 36th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.46g

36th percentile

Cleaner than 64% of websites

✓ Below the Web Sustainability Guidelines target

vs Median 23% cleaner ✓
vs Target 7% cleaner ✓
B
Transfer Efficiency
88% efficient
REVIEW
88% efficient
Info::
Transfer efficiency: 88%
An estimated 240 KB (12%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 240 KB of unused JavaScript. This wasted data produces 0.06g of unnecessary CO2 per page view.
88% efficient

Total waste: 240 KB (12% of page weight)

Unused JS 240 KB

0.06g unnecessary CO2 per visit

Actual transfer 2002 KB
Theoretical minimum 1761 KB
Potential savings 240 KB (0.06g CO2)

See Deep Analysis sections above for specific optimizations.

A
CO2 Per Page Load
0.46g CO2 per view
PASS
0.46g CO2 per view
Info::
0.46g CO2 per page view
This page transfers 2.0 MB, producing an estimated 0.46g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.10g, end-user device 0.36g.
Got: 0.46g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 55.5 kg CO2/year
With 10,000 page views per month, this page would generate approximately 55.5 kg of CO2 annually — equivalent to charging 6943 smartphones.
Info::
Green hosting reduces data center emissions

0.46g

Carbon Footprint per page view

✓ Below sustainability target (0.50g)

Cleaner than 64% of websites

Sustainable Web Design model v4 · Page size: 2.0 MB

Your site
0.46g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.01g
Network
0.10g
End-user device
0.36g
At 10,000 monthly views: Monthly: 4.6 kg · Annual: 55.5 kg · ≈ 6943 smartphone charges
A+
Repeat Visit Weight
84% cached
PASS
84% cached
Info::
84% reduction on repeat visits
Returning visitors download only 314 KB (vs 2002 KB first visit). 163 of 165 resources are served from browser cache, saving 0.39g CO2 per repeat visit.
Info::
Repeat visit: 0.07g CO2 (first visit: 0.46g)
First visit
2002 KB
Repeat visit
314 KB

84% reduction on repeat visits

Saving 0.39g CO2 per returning visitor

163 resources served from cache · 2 resources re-downloaded

A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

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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