Head to head, rubric v2.3.0
Writesonic is 5 points more agent-ready than Surferseo (73/100 against 68/100). Both scores come from public HTTP responses only.
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Share of each check group passed
Machine access
Surferseo 100%
Writesonic 100%
Content legibility
Surferseo 100%
Writesonic 92%
Discovery surface
Surferseo 25%
Writesonic 60%
Identity & policy
Surferseo 42%
Writesonic 42%
Agent-facing performance
Surferseo 100%
Writesonic 75%
Agent protocols
Surferseo 0%
Writesonic 20%
Catalogue access
Surferseo 100%
Writesonic 0%
Product data legibility
Surferseo 9%
Writesonic 0%
Agent-commerce protocols
Surferseo 0%
Writesonic 20%
Checkout traversability
Surferseo 30%
Writesonic 0%
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