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Notes on AI traffic and ChatGPT ads.

What the documentation says, what we’ve measured while building Serge, and the dated campaign research. The evidence and the open questions, in one place.

September 2026 · Articles in English
Four luminous paths converge: conversation, landing page, ad copy and context hints all contribute to matching.
Matching8 min read

Context hints aren’t keywords.

What guides matching, what your export can tell you, and how I’d write the hints.

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Three glass panes feed one light path: conversion rate and order value divided by the cost of a click.
Economics9 min read

A click has to pay for itself.

What two published accounts with revenue above spend had going for them, and the arithmetic to run before you spend.

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One ad account branches into two paths: preparing and approving before launch, tuning and delegating after launch.
Tools6 min read

Two tools, two moments.

A dated comparison from when Serge prepared campaigns for approval; Adsonomy tunes a running account. What each did, cost and suited, as read in September 2026.

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Three glass checkpoints connected by a light path: ad click, landing request and analytics session.
Measurement8 min read

A click isn’t a session.

Use the request log to find the gap between the ad click and the analytics session.

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A prismatic budget reservoir with a clear upper boundary illustrates a total campaign spending cap.
First campaign9 min read

Set the limit before launch.

Budget types, review gates and the stop rule I’m working from for our first campaign.

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Two separate glass layers represent the response and the sponsored placement below it.
Creative8 min read

Write the next answer.

The real character limits, the placement, and what happened when our first ad went through review.

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An illuminated audience aperture separates the ad-supported Free and Go plans from the ad-free paid plans.
Audience7 min read

Who actually sees the ads?

The eligible plans, the exclusions, and why a subscription tier isn’t a buyer profile.

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New to the channel?

Start here.

Five notes, in the order I’d read them.

  1. 01Who actually sees the ads?
  2. 02Context hints aren’t keywords.
  3. 03Write the next answer.
  4. 04Set the limit before launch.
  5. 05A click isn’t a session.
  6. 06Two tools, two moments.
  7. 07A click has to pay for itself.