https://www.creatorstoolshub.site
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
81
GRADE
B
FIX
1
REVIEW
3
PASS
3
INFO
1
Checks
83 PASS 3 REVIEW 1 FIX
DRepeat Visit WeightAction23% cachedFIX
Repeat Visit Weight
Action23% cached
23% cached
Warning::
Only 23% reduction on repeat visits
Returning visitors still download 192 KB — only 23% less than the first visit (251 KB). 1 resources lack proper caching headers. See the Performance tab's HTTP Caching section for specific recommendations.
Info::
Repeat visit: 0.04g CO2 (first visit: 0.06g)
First visit
251 KB
Repeat visit
192 KB
23% reduction on repeat visits
Saving 0.01g CO2 per returning visitor
5 resources served from cache · 1 resources re-downloaded
BGreen HostingGreen (hosting)REVIEW
Green Hosting
Green (hosting)
Green (hosting)
Info::
OpenGSE uses renewable energy
Info::
OpenGSE: 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 OpenGSE✓CDN Not identified✗
OpenGSE: Verified by the Green Web Foundation
Based on known provider commitments. Verify at thegreenwebfoundation.org
BTransfer Efficiency84% efficientREVIEW
Transfer Efficiency
84% efficient
84% efficient
Info::
Transfer efficiency: 84%
An estimated 39 KB (16%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 39 KB of unused JavaScript. This wasted data produces 0.01g of unnecessary CO2 per page view.
Total waste: 39 KB (16% of page weight)
Unused JS 39 KB
0.01g unnecessary CO2 per visit
Actual transfer 251 KB
Theoretical minimum 211 KB
Potential savings 39 KB (0.01g 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.
A+CO2 Per Page Load0.06g CO2 per viewPASS
CO2 Per Page Load
0.06g CO2 per view
0.06g CO2 per view
Info::
0.06g CO2 per page view
This page transfers 0.2 MB, producing an estimated 0.06g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.00g, network 0.01g, end-user device 0.04g.
Got: 0.06g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 7.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 7.0 kg of CO2 annually — equivalent to charging 871 smartphones.
Info::
Green hosting reduces data center emissions
0.06g
Carbon Footprint per page view
✓ Below sustainability target (0.50g)
Cleaner than 90% of websites
Sustainable Web Design model v4 · Page size: 0.2 MB
Your site
0.06g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.00g
Network
0.01g
End-user device
0.04g
At 10,000 monthly views: Monthly: 0.6 kg · Annual: 7.0 kg · ≈ 871 smartphone charges
A+Carbon Budget10th percentilePASS
Carbon Budget
10th percentile
10th percentile
Info::
0.06g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 90% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 10th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
0.06g
10th percentile
Cleaner than 90% of websites
✓ Below the Web Sustainability Guidelines target
vs Median 90% cleaner ✓
vs Target 88% cleaner ✓
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: Google Cloud
Image Optimization2 images, 0 KB total, 0 KB wastedINFO
Image Optimization
2 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
2
Total Size
0 KB
Oversized
1
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.