https://Bissell.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
61
GRADE
D
FIX
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
FCO2 Per Page LoadAction1.78g CO2 per viewFIX
CO2 Per Page Load
Action1.78g CO2 per view
1.78g CO2 per view
Warning::
1.78g CO2 per page view
This page transfers 6.3 MB, producing an estimated 1.78g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.33g, network 0.31g, end-user device 1.15g.
Got: 1.78g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 214.2 kg CO2/year
With 10,000 page views per month, this page would generate approximately 214.2 kg of CO2 annually — equivalent to charging 26772 smartphones.
1.78g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 17% of websites
Sustainable Web Design model v4 · Page size: 6.3 MB
Your site
1.78g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.33g
Network
0.31g
End-user device
1.15g
At 10,000 monthly views: Monthly: 17.8 kg · Annual: 214.2 kg · ≈ 26772 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 Amazon Web Services✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction83th percentileFIX
Carbon Budget
Action83th percentile
83th percentile
Warning::
1.78g CO2 — above the median website (0.60g)
Heavier than an estimated 17% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 83th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.78g
83rd percentile
Cleaner than 17% of websites
✗ Above the median website
vs Median 197% more
vs Target 257% more
BTransfer Efficiency85% efficientREVIEW
Transfer Efficiency
85% efficient
85% efficient
Info::
Transfer efficiency: 85%
An estimated 956 KB (15%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 956 KB of unused JavaScript. This wasted data produces 0.26g of unnecessary CO2 per page view.
Total waste: 956 KB (15% of page weight)
Unused JS 956 KB
0.26g unnecessary CO2 per visit
Actual transfer 6453 KB
Theoretical minimum 5497 KB
Potential savings 956 KB (0.26g 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.
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 Weight97% cachedPASS
Repeat Visit Weight
97% cached
97% cached
Info::
97% reduction on repeat visits
Returning visitors download only 195 KB (vs 6453 KB first visit). 507 of 510 resources are served from browser cache, saving 1.73g CO2 per repeat visit.
Info::
Repeat visit: 0.05g CO2 (first visit: 1.78g)
First visit
6453 KB
Repeat visit
195 KB
97% reduction on repeat visits
Saving 1.73g CO2 per returning visitor
507 resources served from cache · 3 resources re-downloaded
Image Optimization40 images, 324 KB total, 165 KB wastedINFO
Image Optimization
40 images, 324 KB total, 165 KB wasted
Image Optimization Audit
Total Images
40
Total Size
324 KB
Oversized
3
Wasted
165 KB
20 missing alt text 40 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.