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https://www.memorizza.com.br

Sustainability

· 8 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
83
GRADE
B
FIX
1
REVIEW
2
PASS
4
INFO
1
Device:
Mobile Desktop
Checks
8
4 PASS 2 REVIEW 1 FIX
D
Green Hosting
Action
Unknown
FIX
Unknown
Info::
Hosting provider could not be identified
Without knowing the provider, we cannot determine their energy sourcing. Check with your hosting provider about their renewable energy commitments.
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 HostingUnable to Determine
Hosting Not identified✗CDN Not identified✗

Based on known provider commitments. Verify at thegreenwebfoundation.org

B
Transfer Efficiency
75% efficient
REVIEW
75% efficient
Info::
Transfer efficiency: 75%
An estimated 222 KB (25%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 222 KB of unused JavaScript. This wasted data produces 0.06g of unnecessary CO2 per page view.
75% efficient

Total waste: 222 KB (25% of page weight)

Unused JS 222 KB

0.06g unnecessary CO2 per visit

Actual transfer 898 KB
Theoretical minimum 675 KB
Potential savings 222 KB (0.06g CO2)

See Deep Analysis sections above for specific optimizations.

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A
CO2 Per Page Load
0.25g CO2 per view
PASS
0.25g CO2 per view
Info::
0.25g CO2 per page view
This page transfers 0.9 MB, producing an estimated 0.25g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.05g, network 0.04g, end-user device 0.16g.
Got: 0.25g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 29.8 kg CO2/year
With 10,000 page views per month, this page would generate approximately 29.8 kg of CO2 annually — equivalent to charging 3725 smartphones.

0.25g

Carbon Footprint per page view

✓ Below sustainability target (0.50g)

Cleaner than 86% of websites

Sustainable Web Design model v4 · Page size: 0.9 MB

Your site
0.25g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.05g
Network
0.04g
End-user device
0.16g
At 10,000 monthly views: Monthly: 2.5 kg · Annual: 29.8 kg · ≈ 3725 smartphone charges
A+
Repeat Visit Weight
97% cached
PASS
97% cached
Info::
97% reduction on repeat visits
Returning visitors download only 23 KB (vs 898 KB first visit). 19 of 23 resources are served from browser cache, saving 0.24g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.25g)
First visit
898 KB
Repeat visit
23 KB

97% reduction on repeat visits

Saving 0.24g CO2 per returning visitor

19 resources served from cache · 4 resources re-downloaded

A
Carbon Budget
14th percentile
PASS
14th percentile
Info::
0.25g CO2 — below the sustainability target of 0.50g
Cleaner than an estimated 86% of websites analyzed. This page meets the Web Sustainability Guidelines target.
Info::
Estimated 14th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.25g

14th percentile

Cleaner than 86% of websites

✓ Below the Web Sustainability Guidelines target

vs Median 59% cleaner ✓
vs Target 50% cleaner ✓
A+
Web Font Weight Variants
4 font weights loaded across 1 famil(y/ies) -- reasonable
PASS
4 font weights loaded across 1 famil(y/ies) -- reasonable
Info::
4 font weight(s) loaded across 1 famil(y/ies)
Image Optimization
1 images, 77 KB total, 64 KB wasted
INFO

Image Optimization Audit

Total Images

1

Total Size

77 KB

Oversized

1

Wasted

64 KB

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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