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https://www.thousandsmiles.co.uk/cosmetic-dentistry

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
80
GRADE
B
FIX
1
REVIEW
3
PASS
3
INFO
1
Checks
8
3 PASS 3 REVIEW 1 FIX
D
Carbon Budget
Action
53th percentile
FIX
53th percentile
Warning::
0.72g CO2 — above the median website (0.60g)
Heavier than an estimated 47% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 53th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.72g

53rd percentile

Cleaner than 47% of websites

✗ Above the median website

vs Median 19% more
vs Target 43% more
B
CO2 Per Page Load
0.72g CO2 per view
REVIEW
0.72g CO2 per view
Info::
0.72g CO2 per page view
This page transfers 3.0 MB, producing an estimated 0.72g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.15g, end-user device 0.55g.
Got: 0.72g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 86.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 86.0 kg of CO2 annually — equivalent to charging 10749 smartphones.
Info::
Green hosting reduces data center emissions

0.72g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 47% of websites

Sustainable Web Design model v4 · Page size: 3.0 MB

Your site
0.72g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.02g
Network
0.15g
End-user device
0.55g
At 10,000 monthly views: Monthly: 7.2 kg · Annual: 86.0 kg · ≈ 10749 smartphone charges
B
Green Hosting
Green (hosting)
REVIEW
Green (hosting)
Info::
Amazon Web Services uses renewable energy
Info::
Amazon Web Services: Verified by the Green Web Foundation
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 Amazon Web Services✓CDN Not identified✗

Amazon Web Services: Verified by the Green Web Foundation

Based on known provider commitments. Verify at thegreenwebfoundation.org

B
Transfer Efficiency
82% efficient
REVIEW
82% efficient
Info::
Transfer efficiency: 82%
An estimated 551 KB (18%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 551 KB of unused JavaScript. This wasted data produces 0.13g of unnecessary CO2 per page view.
82% efficient

Total waste: 551 KB (18% of page weight)

Unused JS 551 KB

0.13g unnecessary CO2 per visit

Actual transfer 3100 KB
Theoretical minimum 2549 KB
Potential savings 551 KB (0.13g CO2)

See Deep Analysis sections above for specific optimizations.

A+
Repeat Visit Weight
99% cached
PASS
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 39 KB (vs 3100 KB first visit). 67 of 69 resources are served from browser cache, saving 0.71g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.72g)
First visit
3100 KB
Repeat visit
39 KB

99% reduction on repeat visits

Saving 0.71g CO2 per returning visitor

67 resources served from cache · 2 resources re-downloaded

A+
Web Font Weight Variants
1 font weights loaded across 1 famil(y/ies) -- reasonable
PASS
1 font weights loaded across 1 famil(y/ies) -- reasonable
Info::
1 font weight(s) loaded across 1 famil(y/ies)
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Hetzner Online GmbH

Image Optimization
28 images, 1721 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

28

Total Size

1721 KB

28 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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