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

5 PASS 2 REVIEW

Green Hosting

Green (hosting)

REVIEW

Green (hosting)

Hostinger uses renewable energy

Hostinger: 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 Hostinger✓CDN Not identified✗

Hostinger: Verified by the Green Web Foundation

Based on known provider commitments. Verify at thegreenwebfoundation.org

Web Font Weight Variants

No detectable Google Fonts weights

REVIEW

No detectable Google Fonts weights

The analyzer detects font weights via Google Fonts URL parameters (~70% of font-using sites). Self-hosted fonts and non-Google CDN fonts aren't visible to URL-based detection. If you self-host fonts, manually audit how many @font-face weights you ship -- 2-3 weights per family is typically enough; 5+ is usually unused payload.

CO2 Per Page Load

0.30g CO2 per view

PASS

0.30g CO2 per view

0.30g CO2 per page view

This page transfers 1.3 MB, producing an estimated 0.30g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.06g, end-user device 0.23g.

Got: 0.30g CO2 Expected: < 0.50g (sustainability target)

At 10,000 monthly views: 36.1 kg CO2/year

With 10,000 page views per month, this page would generate approximately 36.1 kg of CO2 annually — equivalent to charging 4514 smartphones.

Green hosting reduces data center emissions

0.30g

Carbon Footprint per page view

✓ Below sustainability target (0.50g)

Cleaner than 80% of websites

Sustainable Web Design model v4 · Page size: 1.3 MB

Your site

0.30g

Top 10%

0.20g

Target

0.50g

Median website

0.60g

Energy Breakdown

Data center

0.01g

Network

0.06g

End-user device

0.23g

At 10,000 monthly views: Monthly: 3.0 kg · Annual: 36.1 kg · ≈ 4514 smartphone charges

A+

Repeat Visit Weight

98% cached

PASS

98% cached

98% reduction on repeat visits

Returning visitors download only 19 KB (vs 1302 KB first visit). 67 of 68 resources are served from browser cache, saving 0.30g CO2 per repeat visit.

Repeat visit: 0.00g CO2 (first visit: 0.30g)

First visit

1302 KB

Repeat visit

19 KB

98% reduction on repeat visits

Saving 0.30g CO2 per returning visitor

67 resources served from cache · 1 resources re-downloaded

Carbon Budget

20th percentile

PASS

20th percentile

0.30g CO2 — below the sustainability target of 0.50g

Cleaner than an estimated 80% of websites analyzed. This page meets the Web Sustainability Guidelines target.

Estimated 20th percentile

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

Top 10%

Target

Median website

0.30g

20th percentile

Cleaner than 80% of websites

✓ Below the Web Sustainability Guidelines target

vs Median 50% cleaner ✓

vs Target 40% cleaner ✓

A+

Transfer Efficiency

100% efficient

PASS

100% efficient

Transfer efficiency: 100%

Only 0 KB of potential savings identified. Your page is well-optimized for size.

Actual transfer 1302 KB

Theoretical minimum 1302 KB

See Deep Analysis sections above for specific optimizations.

A+

Green Hosting

Whether the site is served from green-energy infrastructure

PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Hostinger

Image Optimization

11 images, 127 KB total, 25 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

127 KB

Oversized

Wasted

25 KB

1 missing dimensions 2 missing lazy loading

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