https://www.7starshhc.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
63
GRADE
D
FIX
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
DCO2 Per Page LoadAction1.09g CO2 per viewFIX
CO2 Per Page Load
Action1.09g CO2 per view
1.09g CO2 per view
Warning::
1.09g CO2 per page view
This page transfers 3.9 MB, producing an estimated 1.09g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.20g, network 0.19g, end-user device 0.70g.
Got: 1.09g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 131.1 kg CO2/year
With 10,000 page views per month, this page would generate approximately 131.1 kg of CO2 annually — equivalent to charging 16381 smartphones.
1.09g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 36% of websites
Sustainable Web Design model v4 · Page size: 3.9 MB
Your site
1.09g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.20g
Network
0.19g
End-user device
0.70g
At 10,000 monthly views: Monthly: 10.9 kg · Annual: 131.1 kg · ≈ 16381 smartphone charges
DGreen HostingActionUnknownFIX
Green Hosting
ActionUnknown
Unknown
Info::
Hosting provider could not be identified
Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
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 HostingUnable to Determine
Hosting Not identified✗CDN Not identified✗
Based on known provider commitments. Verify at thegreenwebfoundation.org
DCarbon BudgetAction64th percentileFIX
Carbon Budget
Action64th percentile
64th percentile
Warning::
1.09g CO2 — above the median website (0.60g)
Heavier than an estimated 36% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 64th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.09g
64th percentile
Cleaner than 36% of websites
✗ Above the median website
vs Median 82% more
vs Target 118% more
CTransfer EfficiencyAction74% efficientREVIEW
Transfer Efficiency
Action74% efficient
74% efficient
Warning::
Transfer efficiency: 74%
An estimated 1011 KB (26%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1011 KB of unused JavaScript. This wasted data produces 0.28g of unnecessary CO2 per page view.
Total waste: 1011 KB (26% of page weight)
Unused JS 1011 KB
0.28g unnecessary CO2 per visit
Actual transfer 3948 KB
Theoretical minimum 2937 KB
Potential savings 1011 KB (0.28g CO2)
See Deep Analysis sections above for specific optimizations.
CWeb Font Weight VariantsAction11 font weights loaded across 3 famil(y/ies)REVIEW
Web Font Weight Variants
Action11 font weights loaded across 3 famil(y/ies)
11 font weights loaded across 3 famil(y/ies)
Warning::
11 font weights loaded -- likely 100+ KB of unused payload
Loading 11 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: Google Sans Text, Mada, Roboto.
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 32 KB (vs 3948 KB first visit). 163 of 164 resources are served from browser cache, saving 1.08g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 1.09g)
First visit
3948 KB
Repeat visit
32 KB
99% reduction on repeat visits
Saving 1.08g CO2 per returning visitor
163 resources served from cache · 1 resources re-downloaded
Image Optimization59 images, 848 KB total, 111 KB wastedINFO
Image Optimization
59 images, 848 KB total, 111 KB wasted
Image Optimization Audit
Total Images
59
Total Size
848 KB
Oversized
2
Wasted
111 KB
1 missing alt text 57 missing dimensions 49 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.