GEO GUIDE
Writing Ad Copy: Evidence First, Emotion Second
Updated 2026-10-19 · this page makes no search or citation promises
The direct answer: effective ad copy delivers in this order — one concrete claim, the evidence behind it, one clear action. Leading with emotion and backfilling evidence fails in the feed era: users judge the evidence's credibility first. Compliance red line: absolute wording and unsubstantiated efficacy claims are advertising-law constrained.
The direct answer: effective ad copy delivers in this order — one concrete claim, the evidence behind it, one clear action. Leading with emotion and backfilling evidence fails in the feed era: users judge the evidence's credibility first. Compliance red line: absolute wording and unsubstantiated efficacy claims are advertising-law constrained.
Structure: claim, evidence, action
- Claim: one concrete difference (“Deployed in 5 minutes” beats “simple and fast”).
- Evidence: data (with scope), customer words, a verifiable demo.
- Action: one clear next step (trial / booking / download) — not a pile of buttons.
Compliance red lines
- Absolute wording (“best”, “number one”) is advertising-law constrained — replace with checkable differences.
- Efficacy claims need backing: food, skincare, and supplements carry no efficacy wording without an approved filing.
- Comparative ads state the comparison base and source.
Platform differences
- Search ads: the user's core term in the headline.
- Feed ads: the first line readable on its own in the feed.
- Display: very few words — one selling point, fully made.