https://beboplondon.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
65
GRADE
D
FIX
3
REVIEW
2
PASS
2
INFO
1
Checks
82 PASS 2 REVIEW 3 FIX
FCO2 Per Page LoadAction1.67g CO2 per viewFIX
CO2 Per Page Load
Action1.67g CO2 per view
1.67g CO2 per view
Warning::
1.67g CO2 per page view
This page transfers 5.9 MB, producing an estimated 1.67g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.31g, network 0.29g, end-user device 1.08g.
Got: 1.67g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 201.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 201.0 kg of CO2 annually — equivalent to charging 25122 smartphones.
1.67g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 20% of websites
Sustainable Web Design model v4 · Page size: 5.9 MB
Your site
1.67g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.31g
Network
0.29g
End-user device
1.08g
At 10,000 monthly views: Monthly: 16.7 kg · Annual: 201.0 kg · ≈ 25122 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::
AWS: Renewable energy varies by region; committed to 100% by 2025
Info::
AWS CloudFront: Renewable varies by edge location
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 AWS✗CDN AWS CloudFront✗
AWS: Renewable energy varies by region; committed to 100% by 2025
AWS CloudFront: Renewable varies by edge location
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction80th percentileFIX
Carbon Budget
Action80th percentile
80th percentile
Warning::
1.67g CO2 — above the median website (0.60g)
Heavier than an estimated 20% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 80th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.67g
80th percentile
Cleaner than 20% of websites
✗ Above the median website
vs Median 179% more
vs Target 235% more
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.
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 Weight99% cachedPASS
Repeat Visit Weight
99% cached
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 50 KB (vs 6055 KB first visit). 37 of 38 resources are served from browser cache, saving 1.66g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 1.67g)
First visit
6055 KB
Repeat visit
50 KB
99% reduction on repeat visits
Saving 1.66g CO2 per returning visitor
37 resources served from cache · 1 resources re-downloaded
A+Transfer Efficiency94% efficientPASS
Transfer Efficiency
94% efficient
94% efficient
Info::
Transfer efficiency: 94%
Only 366 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 366 KB (6% of page weight)
Unused JS 366 KB
0.10g unnecessary CO2 per visit
Actual transfer 6055 KB
Theoretical minimum 5689 KB
Potential savings 366 KB (0.10g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization23 images, 4879 KB total, 4857 KB wastedINFO
Image Optimization
23 images, 4879 KB total, 4857 KB wasted
Image Optimization Audit
Total Images
23
Total Size
4879 KB
Oversized
19
Wasted
4857 KB
23 missing dimensions 19 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.