TL;DR: Core Update recovery = systematic quality improvement over 3-6 months. Steps: analyze → audit → prune → improve → rebuild → wait. No shortcuts.
Step 1: Analyze
Verify it's Core Update (not technical):
- Check Google announcements.
- Compare drop timing.
- GSC. which queries affected.
- Pattern. all content types or specific?
Step 2: Full Content Audit
Catalog every URL:
- Traffic.
- Backlinks.
- Quality assessment.
- Decision: keep/update/merge/delete.
Step 3: Prune
Delete zombie content. 20-40% typical for HCU-affected sites.
Step 4: Improve Quality
- Rewrite weak pages.
- Add E-E-A-T (credentials, author bios).
- Add first-hand experience.
- Update outdated info.
Step 5: Rebuild Authority
- New high-quality content.
- Link building (quality).
- PR and mentions.
- Consistency.
Step 6: Wait
Recovery takes next Core Update typically. 3-6 months average. Some 12+.
What NOT to Do
- Keyword stuffing.
- AI content without editing.
- Quick link schemes.
- Reset to old content.