# Sift: Poshmark case study
- Canonical HTML: https://growth.iangoh.com/sources/sift-poshmark-case-study-sift-com/
- Original source: https://sift.com/resources/case-studies/poshmark/
- Domain: sift.com
- Latest check: 2026-06-07
- Channels: Marketplace, Retention, Trust & Safety
## Cited GrowthDex tactics
- [Poshmark spam reduction as growth infrastructure](/growth-ideas/poshmark-spam-reduction-as-growth-infrastructure/) - Treat fraud and spam reduction as growth work when marketplace trust decides whether buyers and sellers keep participating.
## Related reading
- [GrowthDex Blog](/blog/)
- [All growth ideas](/growth-ideas/index.md)