https://www.simplymerino.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
75
GRADE
C
FIX
2
REVIEW
2
PASS
3
INFO
1
Checks
83 PASS 2 REVIEW 2 FIX
DCO2 Per Page LoadAction1.41g CO2 per viewFIX
CO2 Per Page Load
Action1.41g CO2 per view
1.41g CO2 per view
Warning::
1.41g CO2 per page view
This page transfers 6.0 MB, producing an estimated 1.41g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.29g, end-user device 1.08g.
Got: 1.41g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 169.4 kg CO2/year
With 10,000 page views per month, this page would generate approximately 169.4 kg of CO2 annually — equivalent to charging 21173 smartphones.
Info::
Green hosting reduces data center emissions
1.41g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 27% of websites
Sustainable Web Design model v4 · Page size: 6.0 MB
Your site
1.41g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.04g
Network
0.29g
End-user device
1.08g
At 10,000 monthly views: Monthly: 14.1 kg · Annual: 169.4 kg · ≈ 21173 smartphone charges
FCarbon BudgetAction73th percentileFIX
Carbon Budget
Action73th percentile
73th percentile
Warning::
1.41g CO2 — above the median website (0.60g)
Heavier than an estimated 27% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 73th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.41g
73rd percentile
Cleaner than 27% of websites
✗ Above the median website
vs Median 135% more
vs Target 182% more
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Amazon Web Services uses renewable energy
Info::
Amazon Web Services: 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 Amazon Web Services✓CDN Shopify✗
Amazon Web Services: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
BWeb Font Weight VariantsNo detectable Google Fonts weightsREVIEW
Web Font Weight Variants
No detectable Google Fonts weights
No detectable Google Fonts weights
Info::
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.
A+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 115 KB (vs 6107 KB first visit). 319 of 323 resources are served from browser cache, saving 1.38g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 1.41g)
First visit
6107 KB
Repeat visit
115 KB
98% reduction on repeat visits
Saving 1.38g CO2 per returning visitor
319 resources served from cache · 4 resources re-downloaded
A+Transfer Efficiency90% efficientPASS
Transfer Efficiency
90% efficient
90% efficient
Info::
Transfer efficiency: 90%
Only 603 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 603 KB (10% of page weight)
Unused JS 603 KB
0.14g unnecessary CO2 per visit
Actual transfer 6107 KB
Theoretical minimum 5503 KB
Potential savings 603 KB (0.14g 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 Optimization200 images, 2833 KB total, 998 KB wastedINFO
Image Optimization
200 images, 2833 KB total, 998 KB wasted
Image Optimization Audit
Total Images
200
Total Size
2833 KB
Oversized
18
Wasted
998 KB
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.