https://www.thousandsmiles.co.uk/dental-hygiene

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Device:

Mobile Desktop

Checks

3 PASS 2 REVIEW 2 FIX

CO2 Per Page Load

Action

0.92g CO2 per view

FIX

0.92g CO2 per view

0.92g CO2 per page view

This page transfers 3.9 MB, producing an estimated 0.92g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.19g, end-user device 0.71g.

Got: 0.92g CO2 Expected: < 0.50g (sustainability target)

At 10,000 monthly views: 110.7 kg CO2/year

With 10,000 page views per month, this page would generate approximately 110.7 kg of CO2 annually — equivalent to charging 13831 smartphones.

Green hosting reduces data center emissions

0.92g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 41% of websites

Sustainable Web Design model v4 · Page size: 3.9 MB

Your site

0.92g

Top 10%

0.20g

Target

0.50g

Median website

0.60g

Energy Breakdown

Data center

0.02g

Network

0.19g

End-user device

0.71g

At 10,000 monthly views: Monthly: 9.2 kg · Annual: 110.7 kg · ≈ 13831 smartphone charges

Carbon Budget

Action

59th percentile

FIX

59th percentile

0.92g CO2 — above the median website (0.60g)

Heavier than an estimated 41% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.

Estimated 59th percentile

Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.

Top 10%

Target

Median website

0.92g

59th percentile

Cleaner than 41% of websites

✗ Above the median website

vs Median 54% more

vs Target 84% more

Green Hosting

Green (hosting)

REVIEW

Green (hosting)

Amazon Web Services uses renewable energy

Amazon Web Services: Verified by the Green Web Foundation

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

Transfer Efficiency

86% efficient

REVIEW

86% efficient

Transfer efficiency: 86%

An estimated 570 KB (14%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 570 KB of unused JavaScript. This wasted data produces 0.13g of unnecessary CO2 per page view.

Total waste: 570 KB (14% of page weight)

Unused JS 570 KB

0.13g unnecessary CO2 per visit

Actual transfer 3989 KB

Theoretical minimum 3418 KB

Potential savings 570 KB (0.13g CO2)

See Deep Analysis sections above for specific optimizations.

A+

Repeat Visit Weight

99% cached

PASS

99% cached

99% reduction on repeat visits

Returning visitors download only 40 KB (vs 3989 KB first visit). 71 of 73 resources are served from browser cache, saving 0.91g CO2 per repeat visit.

Repeat visit: 0.01g CO2 (first visit: 0.92g)

First visit

3989 KB

Repeat visit

40 KB

99% reduction on repeat visits

Saving 0.91g CO2 per returning visitor

71 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

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

32 images, 2602 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

2602 KB

32 missing dimensions 22 missing lazy loading

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.