Head to head, rubric v2.3.0
Both sites score 76/100 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
Sierrasocks 100%
Promomasters 100%
Content legibility
Sierrasocks 85%
Promomasters 88%
Discovery surface
Sierrasocks 65%
Promomasters 60%
Identity & policy
Sierrasocks 58%
Promomasters 67%
Agent-facing performance
Sierrasocks 75%
Promomasters 100%
Agent protocols
Sierrasocks 40%
Promomasters 10%
Catalogue access
Sierrasocks 100%
Promomasters 0%
Product data legibility
Sierrasocks 82%
Promomasters 0%
Agent-commerce protocols
Sierrasocks 20%
Promomasters 10%
Checkout traversability
Sierrasocks 60%
Promomasters 0%
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