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

Sustainability

· 6 checks — CO2 emissions, green hosting, repeat-visit weight, carbon budget, and transfer efficiency rolled into one auditable list.
SCORE
80
GRADE
B
FIX
2
REVIEW
0
PASS
4
INFO
0
Device:
Mobile Desktop
Checks
6
4 PASS 2 FIX
D
CO2 Per Page Load
Action
0.94g CO2 per view
FIX
0.94g CO2 per view
Info::
0.94g CO2 per page view
This page transfers 4.0 MB, producing an estimated 0.94g of CO2 per visit using the Sustainable Web Design model (v4). Breakdown: data center 0.02g, network 0.19g, end-user device 0.72g.
Got: 0.94g CO2 Expected: < 0.50g (sustainability target)
Info::
At 10,000 monthly views: 113.0 kg CO2/year
With 10,000 page views per month, this page would generate approximately 113.0 kg of CO2 annually — equivalent to charging 14126 smartphones.
Info::
Green hosting reduces data center emissions

0.94g

Carbon Footprint per page view

✗ Above sustainability target (0.50g)

Cleaner than 41% of websites

Sustainable Web Design model v4 · Page size: 4.0 MB

Your site
0.94g
Top 10%
0.20g
Target
0.50g
Median website
0.60g

Energy Breakdown

Data center
0.02g
Network
0.19g
End-user device
0.72g
At 10,000 monthly views: Monthly: 9.4 kg · Annual: 113.0 kg · ≈ 14126 smartphone charges
D
Carbon Budget
Action
59th percentile
FIX
59th percentile
Warning::
0.94g CO2 — above the median website (0.60g)
Heavier than an estimated 41% of websites. Reducing page weight, optimizing images, and removing unused JavaScript would lower the carbon footprint. See the Performance tab.
Info::
Estimated 59th percentile
Compared to: top 10% = 0.20g, target = 0.50g, median = 0.60g per page view.
Top 10%
Target
Median website

0.94g

59th percentile

Cleaner than 41% of websites

✗ Above the median website

vs Median 57% more
vs Target 88% more
A+
Green Hosting
Green (both)
PASS
Green (both)
Info::
Both hosting and CDN use renewable energy
Got: Hosting: Google Cloud, CDN: Fastly
Info::
Google Cloud: Verified by the Green Web Foundation
Info::
Fastly: 100% renewable energy for edge network
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 Google Cloud✓CDN Fastly✓

Google Cloud: Verified by the Green Web Foundation

Fastly: 100% renewable energy for edge network

Based on known provider commitments. Verify at thegreenwebfoundation.org

A+
Repeat Visit Weight
92% cached
PASS
92% cached
Info::
92% reduction on repeat visits
Returning visitors download only 314 KB (vs 4074 KB first visit). 309 of 310 resources are served from browser cache, saving 0.87g CO2 per repeat visit.
Info::
Repeat visit: 0.07g CO2 (first visit: 0.94g)
First visit
4074 KB
Repeat visit
314 KB

92% reduction on repeat visits

Saving 0.87g CO2 per returning visitor

309 resources served from cache · 1 resources re-downloaded

A+
Transfer Efficiency
95% efficient
PASS
95% efficient
Info::
Transfer efficiency: 95%
Only 217 KB of potential savings identified. Your page is well-optimized for size.
95% efficient

Total waste: 217 KB (5% of page weight)

Unused JS 217 KB

0.05g unnecessary CO2 per visit

Actual transfer 4074 KB
Theoretical minimum 3856 KB
Potential savings 217 KB (0.05g CO2)

See Deep Analysis sections above for specific optimizations.

A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

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

Send Feedback