Skip to content
https://www.fedex.com

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
66
GRADE
D
FIX
2
REVIEW
3
PASS
1
INFO
0
Device:
Mobile Desktop
Checks
6
1 PASS 3 REVIEW 2 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

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 2.5 MB, producing an estimated 0.71g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.13g, network 0.12g, end-user device 0.46g.
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 10702 smartphones.

0.71g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 47% of websites

Sustainable Web Design model v4 · Page size: 2.5 MB

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

Energy Breakdown

Data center
0.13g
Network
0.12g
End-user device
0.46g
At 10,000 monthly views: Monthly: 7.1 kg · Annual: 85.6 kg · ≈ 10702 smartphone charges
C
Transfer Efficiency
Action
65% efficient
REVIEW
65% efficient
Warning::
Transfer efficiency: 65%
An estimated 907 KB (35%) could be eliminated: 0 KB via better compression, 0 KB via modern image formats, 907 KB of unused JavaScript. This wasted data produces 0.25g of unnecessary CO2 per page view.
65% efficient

Total waste: 907 KB (35% of page weight)

Unused JS 907 KB

0.25g unnecessary CO2 per visit

Actual transfer 2579 KB
Theoretical minimum 1672 KB
Potential savings 907 KB (0.25g 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+
Repeat Visit Weight
99% cached
PASS
99% cached
Info::
99% reduction on repeat visits
Returning visitors download only 29 KB (vs 2579 KB first visit). 86 of 88 resources are served from browser cache, saving 0.71g CO2 per repeat visit.
Info::
Repeat visit: 0.01g CO2 (first visit: 0.71g)
First visit
2579 KB
Repeat visit
29 KB

99% reduction on repeat visits

Saving 0.71g CO2 per returning visitor

86 resources served from cache · 2 resources re-downloaded

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

Send Feedback