Overview
- PromptWatch data show reddit.com fell from roughly 3.8% of ChatGPT Search citations to about 0.5%, an roughly 86% relative drop that established a new low baseline in mid‑August.
- PromptWatch traced the first dip to an Aug. 8 shift in ChatGPT’s query fanout that greatly increased searches using the site: operator and nearly doubled the average sub‑queries per response.
- A sharper collapse around Aug. 14 remains unexplained and PromptWatch says it cannot yet rule out a data‑collection artifact in its tracking.
- OpenAI did not publicly explain the backend change when asked and the episode highlights how unannounced shifts by dominant AI providers can quickly reroute web referral visibility.
- The event echoes a similar visibility collapse in September 2025 that some analysts linked to upstream search indexing changes, and it arrives as Reddit tests AI features that turn posts into short videos and podcasts.