https://www.vanguardmexico.com
Sustainability
· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.SCORE
61
GRADE
D
FIX
3
REVIEW
3
PASS
1
INFO
1
Checks
81 PASS 3 REVIEW 3 FIX
DCO2 Per Page LoadAction1.49g CO2 per viewFIX
CO2 Per Page Load
Action1.49g CO2 per view
1.49g CO2 per view
Warning::
1.49g CO2 per page view
This page transfers 5.3 MB, producing an estimated 1.49g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.28g, network 0.26g, end-user device 0.96g.
Got: 1.49g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 178.9 kg CO2/year
With 10,000 page views per month, this page would generate approximately 178.9 kg of CO2 annually — equivalent to charging 22360 smartphones.
1.49g
Carbon Footprint per page view
✗ Above sustainability target (0.50g)
Cleaner than 25% of websites
Sustainable Web Design model v4 · Page size: 5.3 MB
Your site
1.49g
Top 10%
0.20g
Target
0.50g
Median website
0.60g
Energy Breakdown
Data center
0.28g
Network
0.26g
End-user device
0.96g
At 10,000 monthly views: Monthly: 14.9 kg · Annual: 178.9 kg · ≈ 22360 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::
Akamai: Committed to 50% renewable by 2030
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 Not identified✗CDN Akamai✗
Akamai: Committed to 50% renewable by 2030
Based on known provider commitments. Verify at thegreenwebfoundation.org
FCarbon BudgetAction75th percentileFIX
Carbon Budget
Action75th percentile
75th percentile
Warning::
1.49g CO2 — above the median website (0.60g)
Heavier than an estimated 25% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 75th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website
1.49g
75th percentile
Cleaner than 25% of websites
✗ Above the median website
vs Median 148% more
vs Target 198% more
CTransfer EfficiencyAction69% efficientREVIEW
Transfer Efficiency
Action69% efficient
69% efficient
Warning::
Transfer efficiency: 69%
An estimated 1687 KB (31%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 1687 KB of unused JavaScript. This wasted data produces 0.47g of unnecessary CO2 per page view.
Total waste: 1687 KB (31% of page weight)
Unused JS 1687 KB
0.47g unnecessary CO2 per visit
Actual transfer 5390 KB
Theoretical minimum 3702 KB
Potential savings 1687 KB (0.47g 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.
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 71 KB (vs 5390 KB first visit). 95 of 99 resources are served from browser cache, saving 1.47g CO2 per repeat visit.
Info::
Repeat visit: 0.02g CO2 (first visit: 1.49g)
First visit
5390 KB
Repeat visit
71 KB
99% reduction on repeat visits
Saving 1.47g CO2 per returning visitor
95 resources served from cache · 4 resources re-downloaded
Image Optimization13 images, 952 KB total, 0 KB wastedINFO
Image Optimization
13 images, 952 KB total, 0 KB wasted
Image Optimization Audit
Total Images
13
Total Size
952 KB
13 missing dimensions 13 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.