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https://www.herbs4youdenver.com

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
85
GRADE
B
FIX
0
REVIEW
3
PASS
4
INFO
1
Checks
8
4 PASS 3 REVIEW
B
CO2 Per Page Load
0.59g CO2 per view
REVIEW
0.59g CO2 per view
Info::
0.59g CO2 per page view
This page transfers 2.5 MB, producing an estimated 0.59g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.01g, network 0.12g, end-user device 0.45g.
Got: 0.59g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 70.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 70.8 kg of CO2 annually — equivalent to charging 8856 smartphones.
Info::
Green hosting reduces data center emissions

0.59g

Carbon Footprint per page view

Above sustainability target (0.50g)

Cleaner than 51% of websites

Sustainable Web Design model v4 · Page size: 2.5 MB

Your site
0.59g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.01g
Network
0.12g
End-user device
0.45g
At 10,000 monthly views: Monthly: 5.9 kg · Annual: 70.8 kg · ≈ 8856 smartphone charges
B
Carbon Budget
49th percentile
REVIEW
49th percentile
Info::
0.59g CO2 — below the median website (0.60g)
Better than an estimated 51% of websites, but above the sustainability target of 0.50g. Reducing page weight would help reach the target.
Info::
Estimated 49th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.59g

49th percentile

Cleaner than 51% of websites

Above the median website

vs Median 2% cleaner ✓
vs Target 18% more
B
Web Font Weight Variants
No detectable Google Fonts weights
REVIEW
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+
Green Hosting
Green (both)
PASS
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Google Cloud, CDN: Fastly
Info::
Google Cloud: Verified by the Green Web Foundation
Info::
Fastly: 100% renewable energy for edge network
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 Google CloudCDN Fastly

Google Cloud: Verified by the Green Web Foundation

Fastly: 100% renewable energy for edge network

Based on known provider commitments. Verify at thegreenwebfoundation.org

A+
Repeat Visit Weight
95% cached
PASS
95% cached
Info::
95% reduction on repeat visits
Returning visitors download only 136 KB (vs 2554 KB first visit). 220 of 225 resources are served from browser cache, saving 0.56g CO2 per repeat visit.
Info::
Repeat visit: 0.03g CO2 (first visit: 0.59g)
First visit
2554 KB
Repeat visit
136 KB

95% reduction on repeat visits

Saving 0.56g CO2 per returning visitor

220 resources served from cache · 5 resources re-downloaded

A+
Transfer Efficiency
94% efficient
PASS
94% efficient
Info::
Transfer efficiency: 94%
Only 161 KB of potential savings identified. Your page is well-optimized for size.
94% efficient

Total waste: 161 KB (6% of page weight)

Unused JS 161 KB

0.04g unnecessary CO2 per visit

Actual transfer 2554 KB
Theoretical minimum 2392 KB
Potential savings 161 KB (0.04g CO2)

See Deep Analysis sections above for specific optimizations.

A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

Image Optimization
12 images, 29 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

12

Total Size

29 KB

5 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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