# 13 Reasons Why

> The Netflix series drew more than 11 million tweets within a month of release.

- Owner: Netflix
- Kind: Series
- Sector: Entertainment
- Seed date: 2017-03-31
- Peak date: 2017-04-10
- Spread Score: 66 (Viral), v1.2
- Mechanics: Controversy, Platform jump, Press loop, Response chain, Mystery & lore

## Summary

Netflix released the series after Selena Gomez’s Instagram teaser. Twitter discussion and cast followings grew as parents and prevention groups raised concerns. Netflix added warnings, renewed the show and later edited the finale.

## Timeline

- 2017-01-25 — Selena Gomez (Instagram) — Selena Gomez announced the premiere date on Instagram with a sneak peek.
- 2017-03-31 — Netflix (Open web) — Netflix released the series.
- 2017-04-10 — Parrot Analytics (Open web) — Parrot Analytics demand peaked ten days after the series was released.

The full timeline, metrics and sources are on the case page, or via the Pro API (https://howitspread.com/developers).

Canonical URL: https://howitspread.com/cases/13-reasons-why

Cite as: How It Spread (2026). “13 Reasons Why.” Case HIS-00001. Spread Score v1.2: 66/100. Updated 2026-10-13. https://howitspread.com/id/HIS-00001