Vercel Cache Reason: разделяйте MISS, BYPASS и STALE
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Статус отвечает что произошло, причина — почему. Измеряйте задержку, нагрузку и свежесть по причинам.
| Status | Reason | Action |
|---|---|---|
| MISS | Cold | Check prerender and lifetime |
| BYPASS | Crawler / Draft Mode | Confirm intentional bypass |
| STALE | Revalidation error | Investigate origin while stale serves |
Operational checklist
✓Group metrics by cache_reason
✓Separate latency, origin load, and freshness
✓Do not optimize intentional bypass as a miss