http://www.ricksmainroofing.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
78
GRADE
C
FIX
2
REVIEW
2
PASS
3
INFO
1
Checks
83 PASS 2 REVIEW 2 FIX
DCO2 Per Page LoadAction1.44g CO2 per viewFIX
CO2 Per Page Load
Action1.44g CO2 per view
1.44g CO2 per view
Warning::
1.44g CO2 per page view
This page transfers 6.1 MB, producing an estimated 1.44g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.04g, network 0.30g, end-user device 1.10g.
Got: 1.44g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 172.5 kg CO2/year
With 10,000 page views per month, this page would generate approximately 172.5 kg of CO2 annually — equivalent to charging 21565 smartphones.
Info::
Green hosting reduces data center emissions
1.44g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 27% of websites
Sustainable Web Design model v4 · Page size: 6.1 MB
Your site
1.44g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.04g
Network
0.30g
End-user device
1.10g
At 10,000 monthly views: Monthly: 14.4 kg · Annual: 172.5 kg · ≈ 21565 smartphone charges
FCarbon BudgetAction73th percentileFIX
Carbon Budget
Action73th percentile
73th percentile
Warning::
1.44g CO2 — above the median website (0.60g)
Heavier than an estimated 27% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 73th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.44g
73rd percentile
Cleaner than 27% of websites
✗ Above the median website
vs Median 140% more
vs Target 188% more
BTransfer Efficiency80% efficientREVIEW
Transfer Efficiency
80% efficient
80% efficient
Info::
Transfer efficiency: 80%
An estimated 1240 KB (20%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1240 KB of unused JavaScript. This wasted data produces 0.29g of unnecessary CO2 per page view.
Total waste: 1240 KB (20% of page weight)
Unused JS 1240 KB
0.29g unnecessary CO2 per visit
Actual transfer 6220 KB
Theoretical minimum 4979 KB
Potential savings 1240 KB (0.29g 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+Green HostingGreen (both)PASS
Green Hosting
Green (both)
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Cloudflare, CDN: Cloudflare
Info::
Cloudflare: Verified by the Green Web Foundation
Info::
Cloudflare: 100% renewable energy for global network since 2019
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 Cloudflare✓CDN Cloudflare✓
Cloudflare: Verified by the Green Web Foundation
Cloudflare: 100% renewable energy for global network since 2019
Based on known provider commitments. Verify at thegreenwebfoundation.org
A+Repeat Visit Weight96% cachedPASS
Repeat Visit Weight
96% cached
96% cached
Info::
96% reduction on repeat visits
Returning visitors download only 273 KB (vs 6220 KB first visit). 166 of 172 resources are served from browser cache, saving 1.37g CO2 per repeat visit.
Info::
Repeat visit: 0.06g CO2 (first visit: 1.44g)
First visit
6220 KB
Repeat visit
273 KB
96% reduction on repeat visits
Saving 1.37g CO2 per returning visitor
166 resources served from cache · 6 resources re-downloaded
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: Cloudflare
Image Optimization90 images, 27 KB total, 25 KB wastedINFO
Image Optimization
90 images, 27 KB total, 25 KB wasted
Image Optimization Audit
Total Images
90
Total Size
27 KB
Oversized
1
Wasted
25 KB
8 missing dimensions 9 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.