Head to head, rubric v2.3.0
Both sites score 84/100 for AI agent readiness: they fail and pass the same balance of checks, though not necessarily the same ones.
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Share of each check group passed
Machine access
Sixthshop 100%
Zelium 100%
Content legibility
Sixthshop 73%
Zelium 88%
Discovery surface
Sixthshop 100%
Zelium 95%
Identity & policy
Sixthshop 67%
Zelium 42%
Agent-facing performance
Sixthshop 100%
Zelium 100%
Agent protocols
Sixthshop 50%
Zelium 50%
Catalogue access
Sixthshop 100%
Zelium 100%
Product data legibility
Sixthshop 31%
Zelium 31%
Agent-commerce protocols
Sixthshop 60%
Zelium 50%
Checkout traversability
Sixthshop 60%
Zelium 60%
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