Pulsar · Metrics playbook · No. 06 · Creative fatigue. Real creative trends from the test account (EGP).
Your Ad Is Dying
Every winning ad has a shelf life. Catch the decay before it drains the budget — and know whether to refresh or rethink.
Companion to No. 01 — Efficiency & Fatigue (the full method this deck leans on), No. 02 — Quantity vs. Quality, No. 03 — Garbage In, Lookalike Out, No. 04 — The Invisible Sales and No. 05 — Who Really Made the Sale?
Contents
01 Every ad has a shelf life · 02 The three vital signs · 03 The fatigue signature · 04 Three diseases · 05 Refresh · Rethink · Widen · 06 Pulse vs autopsy · 07 The fix
Every ad has a shelf life
Even a great creative decays as the same audience sees it again and again. It’s not IF but WHEN — and the skill is spotting it early and knowing the right fix. The wrong fix — refreshing a tired concept, or rethinking a healthy ad — costs the same money as no fix at all.
An ad doesn’t die suddenly. It bleeds — a little more CPM, a little less CTR, every day you don’t look.
This deck gives you the decay signatures to watch, three real diagnoses from the test account, and a decision table so the fix matches the disease. The measurement method behind it — indexed trends, never lone numbers — is No. 01 — Efficiency & Fatigue.
The three vital signs
Read these three TOGETHER, over time — never as lone numbers. Any one alone is ambiguous; the pattern between them is the diagnosis.
One number alone lies. A falling CTR could be fatigue, a tired concept, or nothing at all — it depends on what frequency and CPM are doing at the same time. See No. 01 — Efficiency & Fatigue for the full indexed-trend method.
The fatigue signature
The classic pattern to watch: FREQUENCY RISING while CTR FALLS. The same people are seeing the ad more, and responding less — the audience is worn out → fatigue → refresh the creative.
Decay signatures — switch the diagnosis
Two lines over the weeks an ad runs. The shape between them is the diagnosis — flip between the three patterns and watch the verdict change.
The fatigue gate: a frequency above ~2.5 with a falling CTR is what trips Pulsar’s fatigue watch. Below the gate, a CTR dip needs a different explanation — that’s section 04.
The chart is interactive in the HTML version, with three states: Fatigue — frequency climbs from about 1.2× to 2.9× while CTR slides from 3.2% to 1.1%, and the region past frequency 2.5 is shaded as the fatigue zone; Weakening — frequency holds flat near 1.18 while CTR slides from 6.0% to 4.76%; Saturation — frequency climbs 1.05× → 1.66× while CPM climbs 84 → 159 EGP. Each state prints a verdict and the recommended action. The printed figure shows the fatigue state.
Same symptom, three different diseases — real data
A falling CTR means DIFFERENT things depending on frequency. Three real diagnoses from the test account — same downward-looking charts, three opposite prescriptions.
Diagnosis 1 · T-shirt
Saturation
CPM 84 → 159 EGP · freq 1.05 → 1.66
CPM nearly doubled WITH frequency rising — you’re paying more to hit the same people more often. The creative isn’t the problem; the pool is. Widen the audience or cap frequency.
Diagnosis 2 · Bible Cover
Weakening (not fatigue)
CTR 6.0% → 4.76% · freq FLAT ≈ 1.18
CTR fell at flat frequency — the creative itself is losing appeal, NOT overexposure. A new execution of the same idea won’t save it; the concept is tired. Rethink the angle.
Diagnosis 3 · Bible Cover
Healthy efficiency (not decay)
CPM 46.7 → 34.9 EGP · freq flat
CPM fell at flat frequency — cheaper FRESH reach. This is the good kind of decline: the auction got cheaper, not the audience tired. Don’t “fix” this.
Diagnose against frequency BEFORE you act — the same falling CTR calls for three different responses.
Each card carries a two-point sparkline in the HTML version: T-shirt — CPM 84 → 159 EGP rising with frequency 1.05 → 1.66 (saturation, red); Bible Cover — CTR 6.0% → 4.76% at flat frequency ≈ 1.18 (weakening, amber); Bible Cover — CPM 46.7 → 34.9 EGP at flat frequency (healthy efficiency, green).
Refresh vs Rethink vs Widen — the decision table
Match the pattern to the move. Four signatures, four different actions — and only one of them is “do nothing”.
| Pattern | Diagnosis | The move | Why |
|---|---|---|---|
| Frequency ↑ + CTR ↓ | FATIGUE | REFRESH | Same concept, new hook / visual / format; rotate creatives. The idea still works — the audience has just seen this execution too often. |
| Frequency flat + CTR ↓ | WEAKENING | RETHINK | The concept is spent — fresh eyes are already unmoved. A new angle or offer, not a new cut of the same idea. |
| CPM ↑ + Frequency ↑ | SATURATION | WIDEN | You’ve run out of cheap people to reach. Widen the audience or cap frequency — the creative is innocent. |
| CPM ↓ + Frequency flat | EFFICIENCY | LEAVE IT | Cheaper fresh reach — it’s healthy. The only wrong move here is touching it. |
The decider — dial in what you see
Set the two trends you observe (add CPM if you have it) and read the move. Keyboard: Tab between options, Enter to pick.
The decider is interactive in the HTML version: choosing a frequency trend, a CTR trend and optionally a CPM trend outputs the recommended move — REFRESH, RETHINK, WIDEN or LEAVE IT — with a one-line reason. The full mapping is the decision table above.
Don’t refresh a concept problem or rethink a saturation problem. The wrong fix wastes the budget and the week — a new cut of a tired idea still flops, and a brand-new concept aimed at an exhausted pool still overpays for the same eyeballs.
Catch it early: the pulse vs the autopsy
Fatigue is gradual. By the time CPA obviously spikes, you’ve already overspent for days. Watch the LEADING signals weekly; CPA is the LAGGING one.
CPA is the autopsy. Frequency and CTR are the pulse — check the pulse.
The fix — four habits, in order
Rotate before you must, watch the pulse weekly, diagnose before acting — and keep the audience as fresh as the creative.
Keep a creative ROTATION queue
Never run one ad to death. With a successor always staged, a refresh is a routine swap instead of a panic rebuild after the decay has already cost you.
Watch frequency + CTR weekly — set a refresh trigger
Freq > ~2.5 and CTR falling is the trigger. Put it on the calendar; the leading signals only help if someone is actually looking at them.
DIAGNOSE refresh vs rethink vs widen before acting
Section 05 is the table. Same falling CTR — three different diseases, three different fixes. The frequency line tells you which one you have.
Where Pulsar fits: it runs a fatigue watch that tracks frequency + CTR per creative and flags decay — detection is read-only; you decide the action — plus the indexed CPM×frequency and CTR×frequency diagnosis charts from No. 01.
Cross-reference — see No. 01 — Efficiency & Fatigue for the full efficiency method behind every trend in this deck.