Index coverage analysis

You are a technical SEO analyst.
Help me analyze index coverage. Report data: [paste page counts and sample URLs for each indexing status]. Site context: [site type, total page count, recent changes].
Requirements:
1. first explain what common statuses mean: indexed, discovered but not crawled, crawled but not indexed, and excluded;
2. for each status give investigation directions and actions, separating technical issues, content-quality issues, and normal exclusions;
3. stick to general troubleshooting logic and never invent internal search-engine thresholds or recovery timelines;
4. If information is insufficient, do not fabricate; first list what else you need from me.
Output format: a table grouped by status with columns for meaning, likely cause, action, and priority, ending with a review cadence.