https://www.henrycountyva.gov
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
65
GRADE
D
FIX
3
REVIEW
2
PASS
2
INFO
1
Checks
82 PASS 2 REVIEW 3 FIX
DCO2 Per Page LoadAction1.36g CO2 per viewFIX
CO2 Per Page Load
Action1.36g CO2 per view
1.36g CO2 per view
Warning::
1.36g CO2 per page view
This page transfers 4.8 MB, producing an estimated 1.36g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.25g, network 0.24g, end-user device 0.88g.
Got: 1.36g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 163.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 163.6 kg of CO2 annually — equivalent to charging 20450 smartphones.
1.36g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 29% of websites
Sustainable Web Design model v4 · Page size: 4.8 MB
Your site
1.36g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.25g
Network
0.24g
End-user device
0.88g
At 10,000 monthly views: Monthly: 13.6 kg · Annual: 163.6 kg · ≈ 20450 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::
Azure: Microsoft is carbon-negative; Azure renewable varies by region
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 Azure✗CDN Not identified✗
Azure: Microsoft is carbon-negative; Azure renewable varies by region
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction71th percentileFIX
Carbon Budget
Action71th percentile
71th percentile
Warning::
1.36g CO2 — above the median website (0.60g)
Heavier than an estimated 29% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 71th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.36g
71st percentile
Cleaner than 29% of websites
✗ Above the median website
vs Median 127% more
vs Target 173% more
CWeb Font Weight VariantsAction13 font weights loaded across 2 famil(y/ies)REVIEW
Web Font Weight Variants
Action13 font weights loaded across 2 famil(y/ies)
13 font weights loaded across 2 famil(y/ies)
Warning::
13 font weights loaded -- likely 100+ KB of unused payload
Loading 13 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: Lato, Muli.
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 68 KB (vs 4929 KB first visit). 118 of 123 resources are served from browser cache, saving 1.34g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 1.36g)
First visit
4929 KB
Repeat visit
68 KB
99% reduction on repeat visits
Saving 1.34g CO2 per returning visitor
118 resources served from cache · 5 resources re-downloaded
A+Transfer Efficiency90% efficientPASS
Transfer Efficiency
90% efficient
90% efficient
Info::
Transfer efficiency: 90%
Only 480 KB of potential savings identified. Your page is well-optimized for size.
Total waste: 480 KB (10% of page weight)
Unused JS 480 KB
0.13g unnecessary CO2 per visit
Actual transfer 4929 KB
Theoretical minimum 4449 KB
Potential savings 480 KB (0.13g CO2)
See Deep Analysis sections above for specific optimizations.
Image Optimization26 images, 2928 KB total, 1337 KB wastedINFO
Image Optimization
26 images, 2928 KB total, 1337 KB wasted
Image Optimization Audit
Total Images
26
Total Size
2928 KB
Oversized
11
Wasted
1337 KB
25 missing dimensions 17 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.