https://inserted.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
56
GRADE
D
FIX
3
REVIEW
2
PASS
2
INFO
1
Checks
82 PASS 2 REVIEW 3 FIX
FCO2 Per Page LoadAction5.31g CO2 per viewFIX
CO2 Per Page Load
Action5.31g CO2 per view
5.31g CO2 per view
Critical::
5.31g CO2 per page view
This page transfers 18.7 MB, producing an estimated 5.31g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.98g, network 0.92g, end-user device 3.41g.
Got: 5.31g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 636.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 636.8 kg of CO2 annually — equivalent to charging 79603 smartphones.
5.31g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 5% of websites
Sustainable Web Design model v4 · Page size: 18.7 MB
Your site
5.31g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.98g
Network
0.92g
End-user device
3.41g
At 10,000 monthly views: Monthly: 53.1 kg · Annual: 636.8 kg · ≈ 79603 smartphone charges
DGreen HostingActionNot greenFIX
Green Hosting
ActionNot green
Not green
Info::
No confirmed renewable energy commitment detected
Consider providers like Cloudflare, Google Cloud, or Vercel that match 100% of their energy use with renewables.
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 HostingNot Green Hosted
Hosting Next.js✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction95th percentileFIX
Carbon Budget
Action95th percentile
95th percentile
Warning::
5.31g 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
5.31g
95th percentile
Cleaner than 5% of websites
✗ Above the median website
vs Median 784% more
vs Target 961% more
CWeb Font Weight VariantsAction9 font weights loaded across 7 famil(y/ies)REVIEW
Web Font Weight Variants
Action9 font weights loaded across 7 famil(y/ies)
9 font weights loaded across 7 famil(y/ies)
Warning::
9 font weights loaded -- likely 100+ KB of unused payload
Loading 9 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: Arimo, Bebas Neue, Josefin Sans, Montserrat, Raleway, Roboto, Roboto Condensed.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
A+Repeat Visit Weight100% cachedPASS
Repeat Visit Weight
100% cached
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 24 KB (vs 19188 KB first visit). 79 of 80 resources are served from browser cache, saving 5.30g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 5.31g)
First visit
19188 KB
Repeat visit
24 KB
100% reduction on repeat visits
Saving 5.30g CO2 per returning visitor
79 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency98% efficientPASS
Transfer Efficiency
98% efficient
98% efficient
Info::
Transfer efficiency: 98%
Only 475 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 475 KB (2% of page weight)
Unused JS 475 KB
0.13g unnecessary CO2 per visit
Actual transfer 19188 KB
Theoretical minimum 18713 KB
Potential savings 475 KB (0.13g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization63 images, 8866 KB total, 132 KB wastedINFO
Image Optimization
63 images, 8866 KB total, 132 KB wasted
Image Optimization Audit
Total Images
63
Total Size
8866 KB
Oversized
1
Wasted
132 KB
3 missing alt text 63 missing dimensions 58 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.