https://hornbach.de
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
78
GRADE
C
FIX
2
REVIEW
2
PASS
3
INFO
1
Checks
83 PASS 2 REVIEW 2 FIX
DCO2 Per Page LoadAction1.27g CO2 per viewFIX
CO2 Per Page Load
Action1.27g CO2 per view
1.27g CO2 per view
Warning::
1.27g CO2 per page view
This page transfers 5.4 MB, producing an estimated 1.27g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.03g, network 0.26g, end-user device 0.98g.
Got: 1.27g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 152.4 kg CO2/year
With 10,000 page views per month, this page would generate approximately 152.4 kg of CO2 annually — equivalent to charging 19053 smartphones.
Info::
Green hosting reduces data center emissions
1.27g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 31% of websites
Sustainable Web Design model v4 · Page size: 5.4 MB
Your site
1.27g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.03g
Network
0.26g
End-user device
0.98g
At 10,000 monthly views: Monthly: 12.7 kg · Annual: 152.4 kg · ≈ 19053 smartphone charges
DCarbon BudgetAction69th percentileFIX
Carbon Budget
Action69th percentile
69th percentile
Warning::
1.27g CO2 — above the median website (0.60g)
Heavier than an estimated 31% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 69th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.27g
69th percentile
Cleaner than 31% of websites
✗ Above the median website
vs Median 112% more
vs Target 154% more
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
Axis12 Ltd uses renewable energy
Info::
Axis12 Ltd: Verified by the Green Web Foundation
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 Axis12 Ltd✓CDN Not identified✗
Axis12 Ltd: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
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+Repeat Visit Weight98% cachedPASS
Repeat Visit Weight
98% cached
98% cached
Info::
98% reduction on repeat visits
Returning visitors download only 116 KB (vs 5495 KB first visit). 129 of 131 resources are served from browser cache, saving 1.24g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 1.27g)
First visit
5495 KB
Repeat visit
116 KB
98% reduction on repeat visits
Saving 1.24g CO2 per returning visitor
129 resources served from cache · 2 resources re-downloaded
A+Transfer Efficiency95% efficientPASS
Transfer Efficiency
95% efficient
95% efficient
Info::
Transfer efficiency: 95%
Only 270 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 270 KB (5% of page weight)
Unused JS 270 KB
0.06g unnecessary CO2 per visit
Actual transfer 5495 KB
Theoretical minimum 5224 KB
Potential savings 270 KB (0.06g 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: Axis12 Ltd
Image Optimization37 images, 0 KB total, 0 KB wastedINFO
Image Optimization
37 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
37
Total Size
0 KB
Oversized
1
10 missing dimensions 2 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.