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https://lafemmeennoir.net

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
63
GRADE
D
FIX
2
REVIEW
2
PASS
3
INFO
1
Device:
Mobile Desktop
Checks
8
3 PASS 2 REVIEW 2 FIX
F
CO2 Per Page Load
Action
2.07g CO2 per view
FIX
2.07g CO2 per view
Critical::
2.07g CO2 per page view
This page transfers 8.7 MB, producing an estimated 2.07g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.05g, network 0.43g, end-user device 1.59g.
Got: 2.07g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 248.3 kg CO2/year
With 10,000 page views per month, this page would generate approximately 248.3 kg of CO2 annually — equivalent to charging 31035 smartphones.
Info::
Green hosting reduces data center emissions

2.07g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 5% of websites

Sustainable Web Design model v4 · Page size: 8.7 MB

Your site
2.07g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.05g
Network
0.43g
End-user device
1.59g
At 10,000 monthly views: Monthly: 20.7 kg · Annual: 248.3 kg · ≈ 31035 smartphone charges
F
Carbon Budget
Action
95th percentile
FIX
95th percentile
Warning::
2.07g 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

2.07g

95th percentile

Cleaner than 5% of websites

✗ Above the median website

vs Median 245% more
vs Target 314% more
B
Transfer Efficiency
83% efficient
REVIEW
83% efficient
Info::
Transfer efficiency: 83%
An estimated 1561 KB (17%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1561 KB of unused JavaScript. This wasted data produces 0.36g of unnecessary CO2 per page view.
83% efficient

Total waste: 1561 KB (17% of page weight)

Unused JS 1561 KB

0.36g unnecessary CO2 per visit

Actual transfer 8951 KB
Theoretical minimum 7389 KB
Potential savings 1561 KB (0.36g CO2)

See Deep Analysis sections above for specific optimizations.

C
Web Font Weight Variants
Action
8 font weights loaded across 2 famil(y/ies)
REVIEW
8 font weights loaded across 2 famil(y/ies)
Warning::
8 font weights loaded -- likely 100+ KB of unused payload
Loading 8 font weights typically transfers 200-400 KB just for fonts. Most pages legitimately use 2-3 weights (regular + bold, maybe medium). Audit which weights your stylesheet actually applies and trim the Google Fonts URL accordingly. Affected families: Multi|Open Sans, Poppins.
A+
Green Hosting
Green (both)
PASS
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Cloudflare, CDN: Cloudflare
Info::
Cloudflare: Verified by the Green Web Foundation
Info::
Cloudflare: 100% renewable energy for global network since 2019
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 Cloudflare✓CDN Cloudflare✓

Cloudflare: 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
Info::
98% reduction on repeat visits
Returning visitors download only 162 KB (vs 8951 KB first visit). 354 of 359 resources are served from browser cache, saving 2.03g CO2 per repeat visit.
Info::
Repeat visit: 0.04g CO2 (first visit: 2.07g)
First visit
8951 KB
Repeat visit
162 KB

98% reduction on repeat visits

Saving 2.03g CO2 per returning visitor

354 resources served from cache · 5 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: Cloudflare

Image Optimization
73 images, 1899 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

73

Total Size

1899 KB

13 missing alt text 1 missing dimensions 4 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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