Why these 50 questions specifically?

I started with ~140 candidate questions drawn from 9 years of incident logs, then iteratively cut to the smallest set that:

• Catches 80%+ of real production incidents in advance. Adding more questions hits diminishing returns fast — each marginal question above 50 catches less new variance.
• Covers the 5 categories evenly (10 questions each). Real Magento ops failures are roughly evenly split across security / performance / SEO / B2B / ops; an 8-question SEO category and a 14-question security category would skew the overall grade.
• Is answerable in 5 minutes by a senior operator without code-reading. If a question would require running a query or grepping a log, it becomes a “skip if unsure” question instead of being on the list.
• Avoids vendor-specific bias. No “are you using product X.” Yes/no/skip on real engineering checks, not marketplace endorsements.

The full candidate list (the 140) lives in the deep-audit. If your in-page checklist score is C or below, the 90 extra questions in the deep audit are probably where the real failures hide.