https://angelruche.com
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 LoadAction2.23g CO2 per viewFIX
CO2 Per Page Load
Action2.23g CO2 per view
2.23g CO2 per view
Critical::
2.23g CO2 per page view
This page transfers 9.4 MB, producing an estimated 2.23g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.06g, network 0.46g, end-user device 1.71g.
Got: 2.23g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 267.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 267.6 kg of CO2 annually — equivalent to charging 33454 smartphones.
Info::
Green hosting reduces data center emissions
2.23g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 9.4 MB
Your site
2.23g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.06g
Network
0.46g
End-user device
1.71g
At 10,000 monthly views: Monthly: 22.3 kg · Annual: 267.6 kg · ≈ 33454 smartphone charges
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
2.23g 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
2.23g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 272% more
vs Target 346% more
BWeb Font Weight Variants7 font weights loaded across 5 famil(y/ies)REVIEW
Web Font Weight Variants
7 font weights loaded across 5 famil(y/ies)
7 font weights loaded across 5 famil(y/ies)
Info::
7 font weights loaded -- review whether all are used
5+ weights for a single page is often more than needed. Compare against the actual font-weight CSS rules in your stylesheets; trim weights that aren't applied to any element. Affected families: Alegreya, EB Garamond, Fira Code, Lato, Pinyon Script.
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 159 KB (vs 9649 KB first visit). 574 of 579 resources are served from browser cache, saving 2.19g CO2 per repeat visit.
Info::
Repeat visit: 0.04g CO2 (first visit: 2.23g)
First visit
9649 KB
Repeat visit
159 KB
98% reduction on repeat visits
Saving 2.19g CO2 per returning visitor
574 resources served from cache · 5 resources re-downloaded
A+Transfer Efficiency90% efficientPASS
Transfer Efficiency
90% efficient
90% efficient
Info::
Transfer efficiency: 90%
Only 945 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 945 KB (10% of page weight)
Unused JS 945 KB
0.22g unnecessary CO2 per visit
Actual transfer 9649 KB
Theoretical minimum 8703 KB
Potential savings 945 KB (0.22g 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, 0 KB total, 0 KB wastedINFO
Image Optimization
200 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
200
Total Size
0 KB
Oversized
5
9 missing alt text 1 missing dimensions 131 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.