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
FCO2 Per Page LoadAction1.51g CO2 per viewFIX
CO2 Per Page Load
Action1.51g CO2 per view
1.51g CO2 per view
Warning::
1.51g CO2 per page view
This page transfers 5.3 MB, producing an estimated 1.51g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.28g, network 0.26g, end-user device 0.97g.
Got: 1.51g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 181.4 kg CO2/year
With 10,000 page views per month, this page would generate approximately 181.4 kg of CO2 annually — equivalent to charging 22680 smartphones.
1.51g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 24% of websites
Sustainable Web Design model v4 · Page size: 5.3 MB
Your site
1.51g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.28g
Network
0.26g
End-user device
0.97g
At 10,000 monthly views: Monthly: 15.1 kg · Annual: 181.4 kg · ≈ 22680 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
FCarbon BudgetAction76th percentileFIX
Carbon Budget
Action76th percentile
76th percentile
Warning::
1.51g CO2 — above the median website (0.60g)
Heavier than an estimated 24% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 76th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.51g
76th percentile
Cleaner than 24% of websites
✗ Above the median website
vs Median 152% more
vs Target 202% more
BTransfer Efficiency80% efficientREVIEW
Transfer Efficiency
80% efficient
80% efficient
Info::
Transfer efficiency: 80%
An estimated 1091 KB (20%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1091 KB of unused JavaScript. This wasted data produces 0.30g of unnecessary CO2 per page view.
Total waste: 1091 KB (20% of page weight)
Unused JS 1091 KB
0.30g unnecessary CO2 per visit
Actual transfer 5467 KB
Theoretical minimum 4375 KB
Potential savings 1091 KB (0.30g 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 5467 KB first visit). 193 of 194 resources are served from browser cache, saving 1.50g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 1.51g)
First visit
5467 KB
Repeat visit
32 KB
99% reduction on repeat visits
Saving 1.50g CO2 per returning visitor
193 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.