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https://mq.edu.au

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
77
GRADE
C
FIX
1
REVIEW
3
PASS
2
INFO
0
Device:
Mobile Desktop
Checks
6
2 PASS 3 REVIEW 1 FIX
D
Carbon Budget
Action
53th percentile
FIX
53th percentile
Warning::
0.71g CO2 — above the median website (0.60g)
Heavier than an estimated 47% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 53th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.71g

53rd percentile

Cleaner than 47% of websites

✗ Above the median website

vs Median 19% more
vs Target 43% more
B
CO2 Per Page Load
0.71g CO2 per view
REVIEW
0.71g CO2 per view
Info::
0.71g CO2 per page view
This page transfers 3.0 MB, producing an estimated 0.71g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.15g, end-user device 0.55g.
Got: 0.71g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 85.6 kg CO2/year
With 10,000 page views per month, this page would generate approximately 85.6 kg of CO2 annually — equivalent to charging 10693 smartphones.
Info::
Green hosting reduces data center emissions

0.71g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 47% of websites

Sustainable Web Design model v4 · Page size: 3.0 MB

Your site
0.71g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.02g
Network
0.15g
End-user device
0.55g
At 10,000 monthly views: Monthly: 7.1 kg · Annual: 85.6 kg · ≈ 10693 smartphone charges
B
Transfer Efficiency
80% efficient
REVIEW
80% efficient
Info::
Transfer efficiency: 80%
An estimated 603 KB (20%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 603 KB of unused JavaScript. This wasted data produces 0.14g of unnecessary CO2 per page view.
80% efficient

Total waste: 603 KB (20% of page weight)

Unused JS 603 KB

0.14g unnecessary CO2 per visit

Actual transfer 3084 KB
Theoretical minimum 2480 KB
Potential savings 603 KB (0.14g 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
Green Hosting
Green (cdn)
PASS
Green (cdn)
Info::
Cloudflare CDN uses renewable energy
Since most traffic is served through the CDN, the majority of data transfer energy is renewable.
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 Not identified✗CDN Cloudflare✓

Cloudflare: 100% renewable energy for global network since 2019

Based on known provider commitments. Verify at thegreenwebfoundation.org

A+
Repeat Visit Weight
100% cached
PASS
100% cached
Info::
100% reduction on repeat visits
Returning visitors download only 9 KB (vs 3084 KB first visit). 194 of 200 resources are served from browser cache, saving 0.71g CO2 per repeat visit.
Info::
Repeat visit: 0.00g CO2 (first visit: 0.71g)
First visit
3084 KB
Repeat visit
9 KB

100% reduction on repeat visits

Saving 0.71g CO2 per returning visitor

194 resources served from cache · 6 resources re-downloaded

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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