https://melenchon2027.fr
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
71
GRADE
C
FIX
2
REVIEW
1
PASS
4
INFO
1
Checks
84 PASS 1 REVIEW 2 FIX
FCO2 Per Page LoadAction1.51g CO2 per viewFIX
CO2 Per Page Load
Action1.51g CO2 per view
1.51g CO2 per view
Warning::
1.51g CO2 per page view
This page transfers 6.4 MB, producing an estimated 1.51g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.31g, end-user device 1.16g.
Got: 1.51g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 181.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 181.0 kg of CO2 annually — equivalent to charging 22629 smartphones.
Info::
Green hosting reduces data center emissions
1.51g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 25% of websites
Sustainable Web Design model v4 · Page size: 6.4 MB
Your site
1.51g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.04g
Network
0.31g
End-user device
1.16g
At 10,000 monthly views: Monthly: 15.1 kg · Annual: 181.0 kg · ≈ 22629 smartphone charges
FCarbon BudgetAction75th percentileFIX
Carbon Budget
Action75th percentile
75th percentile
Warning::
1.51g CO2 — above the median website (0.60g)
Heavier than an estimated 25% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 75th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.51g
75th percentile
Cleaner than 25% of websites
✗ Above the median website
vs Median 151% more
vs Target 202% more
CWeb Font Weight VariantsAction18 font weights loaded across 1 famil(y/ies)REVIEW
Web Font Weight Variants
Action18 font weights loaded across 1 famil(y/ies)
18 font weights loaded across 1 famil(y/ies)
Warning::
18 font weights loaded -- likely 100+ KB of unused payload
Loading 18 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: Roboto.
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
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 Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 156 KB (vs 6526 KB first visit). 172 of 175 resources are served from browser cache, saving 1.47g CO2 per repeat visit.
Info::
Repeat visit: 0.04g CO2 (first visit: 1.51g)
First visit
6526 KB
Repeat visit
156 KB
98% reduction on repeat visits
Saving 1.47g CO2 per returning visitor
172 resources served from cache · 3 resources re-downloaded
A+Transfer Efficiency100% efficientPASS
Transfer Efficiency
100% efficient
100% efficient
Info::
Transfer efficiency: 100%
Only 25 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 25 KB (0% of page weight)
Unused JS 25 KB
0.01g unnecessary CO2 per visit
Actual transfer 6526 KB
Theoretical minimum 6501 KB
Potential savings 25 KB (0.01g CO2)
See Deep Analysis sections above for specific optimizations.
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Image Optimization19 images, 6882 KB total, 3121 KB wastedINFO
Image Optimization
19 images, 6882 KB total, 3121 KB wasted
Image Optimization Audit
Total Images
19
Total Size
6882 KB
Oversized
10
Wasted
3121 KB
2 missing alt text 17 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.