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https://outdooractive.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
62
GRADE
D
FIX
2
REVIEW
2
PASS
2
INFO
0
Device:
Mobile Desktop
Checks
6
2 PASS 2 REVIEW 2 FIX
F
CO2 Per Page Load
Action
2.96g CO2 per view
FIX
2.96g CO2 per view
Critical::
2.96g CO2 per page view
This page transfers 12.5 MB, producing an estimated 2.96g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.07g, network 0.61g, end-user device 2.27g.
Got: 2.96g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 355.3 kg CO2/year
With 10,000 page views per month, this page would generate approximately 355.3 kg of CO2 annually — equivalent to charging 44410 smartphones.
Info::
Green hosting reduces data center emissions

2.96g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 5% of websites

Sustainable Web Design model v4 · Page size: 12.5 MB

Your site
2.96g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.07g
Network
0.61g
End-user device
2.27g
At 10,000 monthly views: Monthly: 29.6 kg · Annual: 355.3 kg · ≈ 44410 smartphone charges
F
Carbon Budget
Action
95th percentile
FIX
95th percentile
Warning::
2.96g CO2 — above the median website (0.60g)
Heavier than an estimated 5% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 95th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

2.96g

95th percentile

Cleaner than 5% of websites

✗ Above the median website

vs Median 393% more
vs Target 492% more
B
Green Hosting
Green (hosting)
REVIEW
Green (hosting)
Info::
Hetzner Online GmbH uses renewable energy
Info::
Hetzner Online GmbH: 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 Hetzner Online GmbH✓CDN Not identified✗

Hetzner Online GmbH: Verified by the Green Web Foundation

Based on known provider commitments. Verify at thegreenwebfoundation.org

B
Transfer Efficiency
89% efficient
REVIEW
89% efficient
Info::
Transfer efficiency: 89%
An estimated 1388 KB (11%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1388 KB of unused JavaScript. This wasted data produces 0.32g of unnecessary CO2 per page view.
89% efficient

Total waste: 1388 KB (11% of page weight)

Unused JS 1388 KB

0.32g unnecessary CO2 per visit

Actual transfer 12809 KB
Theoretical minimum 11420 KB
Potential savings 1388 KB (0.32g CO2)

See Deep Analysis sections above for specific optimizations.

A+
Repeat Visit Weight
100% cached
PASS
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 22 KB (vs 12809 KB first visit). 231 of 233 resources are served from browser cache, saving 2.96g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 2.96g)
First visit
12809 KB
Repeat visit
22 KB

100% reduction on repeat visits

Saving 2.96g CO2 per returning visitor

231 resources served from cache · 2 resources re-downloaded

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

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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