https://www.theverge.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
2
PASS
3
INFO
1
Checks
83 PASS 2 REVIEW 2 FIX
FCO2 Per Page LoadAction1.64g CO2 per viewFIX
CO2 Per Page Load
Action1.64g CO2 per view
1.64g CO2 per view
Warning::
1.64g CO2 per page view
This page transfers 6.9 MB, producing an estimated 1.64g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.34g, end-user device 1.26g.
Got: 1.64g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 196.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 196.6 kg of CO2 annually — equivalent to charging 24580 smartphones.
Info::
Green hosting reduces data center emissions
1.64g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 21% of websites
Sustainable Web Design model v4 · Page size: 6.9 MB
Your site
1.64g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.04g
Network
0.34g
End-user device
1.26g
At 10,000 monthly views: Monthly: 16.4 kg · Annual: 196.6 kg · ≈ 24580 smartphone charges
FCarbon BudgetAction79th percentileFIX
Carbon Budget
Action79th percentile
79th percentile
Warning::
1.64g CO2 — above the median website (0.60g)
Heavier than an estimated 21% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 79th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.64g
79th percentile
Cleaner than 21% of websites
✗ Above the median website
vs Median 173% more
vs Target 228% more
BTransfer Efficiency81% efficientREVIEW
Transfer Efficiency
81% efficient
81% efficient
Info::
Transfer efficiency: 81%
An estimated 1379 KB (19%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1379 KB of unused JavaScript. This wasted data produces 0.32g of unnecessary CO2 per page view.
Total waste: 1379 KB (19% of page weight)
Unused JS 1379 KB
0.32g unnecessary CO2 per visit
Actual transfer 7089 KB
Theoretical minimum 5710 KB
Potential savings 1379 KB (0.32g CO2)
See Deep Analysis sections above for specific optimizations.
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+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Next.js, CDN: Fastly
Info::
Next.js: Verified by the Green Web Foundation
Info::
Fastly: 100% renewable energy for edge network
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 Fastly✓
Next.js: Verified by the Green Web Foundation
Fastly: 100% renewable energy for edge network
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 113 KB (vs 7089 KB first visit). 190 of 201 resources are served from browser cache, saving 1.61g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 1.64g)
First visit
7089 KB
Repeat visit
113 KB
98% reduction on repeat visits
Saving 1.61g CO2 per returning visitor
190 resources served from cache · 11 resources re-downloaded
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: Axis12 Ltd
Image Optimization153 images, 0 KB total, 0 KB wastedINFO
Image Optimization
153 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
153
Total Size
0 KB
133 missing dimensions 1 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.