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

4 PASS 1 REVIEW 2 FIX

CO2 Per Page Load

Action

1.97g CO2 per view

FIX

1.97g CO2 per view

1.97g CO2 per page view

This page transfers 8.3 MB, producing an estimated 1.97g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.05g, network 0.41g, end-user device 1.51g.

Got: 1.97g CO2 Expected: < 0.50g (sustainability target)

At 10,000 monthly views: 236.5 kg CO2/year

With 10,000 page views per month, this page would generate approximately 236.5 kg of CO2 annually — equivalent to charging 29562 smartphones.

Green hosting reduces data center emissions

1.97g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 11% of websites

Sustainable Web Design model v4 · Page size: 8.3 MB

Your site

1.97g

Top 10%

0.20g

Target

0.50g

Median website

0.60g

Energy Breakdown

Data center

0.05g

Network

0.41g

End-user device

1.51g

At 10,000 monthly views: Monthly: 19.7 kg · Annual: 236.5 kg · ≈ 29562 smartphone charges

Carbon Budget

Action

89th percentile

FIX

89th percentile

1.97g CO2 — above the median website (0.60g)

Heavier than an estimated 11% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.

Estimated 89th percentile

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

Top 10%

Target

Median website

1.97g

89th percentile

Cleaner than 11% of websites

✗ Above the median website

vs Median 228% more

vs Target 294% more

Transfer Efficiency

89% efficient

REVIEW

89% efficient

Transfer efficiency: 89%

An estimated 973 KB (11%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 973 KB of unused JavaScript. This wasted data produces 0.23g of unnecessary CO2 per page view.

Total waste: 973 KB (11% of page weight)

Unused JS 973 KB

0.23g unnecessary CO2 per visit

Actual transfer 8526 KB

Theoretical minimum 7553 KB

Potential savings 973 KB (0.23g CO2)

See Deep Analysis sections above for specific optimizations.

A+

Green Hosting

Green (both)

PASS

Green (both)

Both hosting and CDN use renewable energy

Got: Hosting: GoDaddy, CDN: Cloudflare

GoDaddy: Verified by the Green Web Foundation

Cloudflare: 100% renewable energy for global network since 2019

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 GoDaddy✓CDN Cloudflare✓

GoDaddy: Verified by the Green Web Foundation

Cloudflare: 100% renewable energy for global network since 2019

Based on known provider commitments. Verify at thegreenwebfoundation.org

A+

Repeat Visit Weight

98% cached

PASS

98% cached

98% reduction on repeat visits

Returning visitors download only 130 KB (vs 8526 KB first visit). 374 of 378 resources are served from browser cache, saving 1.94g CO2 per repeat visit.

Repeat visit: 0.03g CO2 (first visit: 1.97g)

First visit

8526 KB

Repeat visit

130 KB

98% reduction on repeat visits

Saving 1.94g CO2 per returning visitor

374 resources served from cache · 4 resources re-downloaded

A+

Web Font Weight Variants

3 font weights loaded across 2 famil(y/ies) -- reasonable

PASS

3 font weights loaded across 2 famil(y/ies) -- reasonable

3 font weight(s) loaded across 2 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: Cloudflare

Image Optimization

57 images, 928 KB total, 0 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

928 KB

3 missing alt text 57 missing dimensions 43 missing lazy loading

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