https://catholicnewsagency.com
Sustainability
· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
66
GRADE
D
FIX
2
REVIEW
0
PASS
4
INFO
0
Checks
64 PASS 2 FIX
FCO2 Per Page LoadAction15.43g CO2 per viewFIX
CO2 Per Page Load
Action15.43g CO2 per view
15.43g CO2 per view
Critical::
15.43g CO2 per page view
This page transfers 65.2 MB, producing an estimated 15.43g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.39g, network 3.19g, end-user device 11.85g.
Got: 15.43g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 1852.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 1852.0 kg of CO2 annually — equivalent to charging 231503 smartphones.
Info::
Green hosting reduces data center emissions
15.43g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 65.2 MB
Your site
15.43g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.39g
Network
3.19g
End-user device
11.85g
At 10,000 monthly views: Monthly: 154.3 kg · Annual: 1852.0 kg · ≈ 231503 smartphone charges
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
15.43g 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
15.43g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 2472% more
vs Target 2987% more
A+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Next.js, CDN: Cloudflare
Info::
Next.js: 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 Next.js✓CDN Cloudflare✓
Next.js: 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 Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 75 KB (vs 66771 KB first visit). 205 of 209 resources are served from browser cache, saving 15.42g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 15.43g)
First visit
66771 KB
Repeat visit
75 KB
100% reduction on repeat visits
Saving 15.42g CO2 per returning visitor
205 resources served from cache · 4 resources re-downloaded
A+Transfer Efficiency99% efficientPASS
Transfer Efficiency
99% efficient
99% efficient
Info::
Transfer efficiency: 99%
Only 360 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 360 KB (1% of page weight)
Unused JS 360 KB
0.08g unnecessary CO2 per visit
Actual transfer 66771 KB
Theoretical minimum 66410 KB
Potential savings 360 KB (0.08g 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
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.