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https://nameshift.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
96
GRADE
A
FIX
0
REVIEW
1
PASS
5
INFO
0
Device:
Mobile Desktop
Checks
6
5 PASS 1 REVIEW
B
Transfer Efficiency
84% efficient
REVIEW
84% efficient
Info::
Transfer efficiency: 84%
An estimated 65 KB (16%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 65 KB of unused JavaScript. This wasted data produces 0.02g of unnecessary CO2 per page view.
84% efficient

Total waste: 65 KB (16% of page weight)

Unused JS 65 KB

0.02g unnecessary CO2 per visit

Actual transfer 414 KB
Theoretical minimum 349 KB
Potential savings 65 KB (0.02g CO2)

See Deep Analysis sections above for specific optimizations.

A+
CO2 Per Page Load
0.10g CO2 per view
PASS
0.10g CO2 per view
Info::
0.10g CO2 per page view
This page transfers 0.4 MB, producing an estimated 0.10g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.00g, network 0.02g, end-user device 0.07g.
Got: 0.10g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 11.5 kg CO2/year
With 10,000 page views per month, this page would generate approximately 11.5 kg of CO2 annually — equivalent to charging 1437 smartphones.
Info::
Green hosting reduces data center emissions

0.10g

Carbon Footprint per page view

✓ Below sustainability target (0.50g)

Cleaner than 90% of websites

Sustainable Web Design model v4 · Page size: 0.4 MB

Your site
0.10g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.00g
Network
0.02g
End-user device
0.07g
At 10,000 monthly views: Monthly: 1.0 kg · Annual: 11.5 kg · ≈ 1437 smartphone charges
A+
Green Hosting
Green (both)
PASS
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Google Cloud, CDN: Fastly
Info::
Google Cloud: Verified by the Green Web Foundation
Info::
Fastly: 100% renewable energy for edge network
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 Fastly✓

Google Cloud: Verified by the Green Web Foundation

Fastly: 100% renewable energy for edge network

Based on known provider commitments. Verify at thegreenwebfoundation.org

A+
Repeat Visit Weight
98% cached
PASS
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 7 KB (vs 414 KB first visit). 16 of 18 resources are served from browser cache, saving 0.09g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.10g)
First visit
414 KB
Repeat visit
7 KB

98% reduction on repeat visits

Saving 0.09g CO2 per returning visitor

16 resources served from cache · 2 resources re-downloaded

A+
Carbon Budget
10th percentile
PASS
10th percentile
Info::
0.10g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 90% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 10th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.10g

10th percentile

Cleaner than 90% of websites

✓ Below the Web Sustainability Guidelines target

vs Median 84% cleaner ✓
vs Target 81% cleaner ✓
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Quis Lab (Plushie App)

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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