Head to head, rubric v2.3.0
Both sites score 66/100 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
Merchkit 100%
Opttab 100%
Content legibility
Merchkit 73%
Opttab 62%
Discovery surface
Merchkit 45%
Opttab 60%
Identity & policy
Merchkit 42%
Opttab 75%
Agent-facing performance
Merchkit 100%
Opttab 63%
Agent protocols
Merchkit 10%
Opttab 0%
Catalogue access
Merchkit 100%
Opttab 100%
Product data legibility
Merchkit 18%
Opttab 0%
Agent-commerce protocols
Merchkit 15%
Opttab 0%
Checkout traversability
Merchkit 30%
Opttab 30%
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