Targeting still matters, but far less than it did, and in a different way. The old craft of stacking interests to find a narrow audience has mostly stopped outperforming a broad audience with strong creative. What matters now is giving the delivery system a clear outcome to optimize toward, excluding the people you should not pay to reach, and putting enough distinct creative in front of it.
The short version: your creative is now doing most of the targeting work.
What actually changed
Two things happened at once.
The signal available for narrow targeting got weaker, as platform-level privacy changes reduced how much could be inferred about individual people from outside the platform. At the same time, the delivery systems got substantially better at finding buyers on their own, using in-platform behavior at a scale no manual audience definition can match.
The result is that a tightly defined interest audience is now often worse than a broad one. You are paying a premium to compete for a small pool while preventing the system from finding buyers you never thought to include.
What still genuinely matters
Geography. If you serve a radius, target that radius. This is the single most valuable targeting decision most local businesses make, and it is not subtle. See Facebook ads for local businesses.
Exclusions. Not paying to reach existing customers with an acquisition offer, not paying twice for the same person across overlapping campaigns, not showing a first-touch ad to someone who already bought. Exclusions are underrated and still do real work.
Audiences built from your own data. People who visited, people who bought, people who engaged. These are yours, they are accurate, and they are the foundation of retargeting.
Lookalikes from a good source. A lookalike is only as good as the list it is built from. Built from your best customers, it still performs. Built from all traffic, it mostly reproduces your traffic.
The objective. Telling the system to find purchases rather than clicks is a targeting decision in everything but name, and it is the one most often set wrong.
What matters much less than it used to
Stacking interests. Layering behaviors. Narrow demographic slicing. Elaborate audience architecture built before you have any creative that works.
None of this is worthless, and in some niche categories it still helps. But it is no longer where the leverage sits, and for most advertisers it is a way of feeling productive without improving results.
The evidence in how big brands operate
Look at what companies with large budgets actually do. In the Hello Radio archive, a live archive of real ads from more than 300 brands refreshed every morning, the median brand runs about 170 ads at the same time, and 62 brands run more than 500 concurrently. Measured August 2026.
That is an enormous investment in creative volume. If narrow targeting were the lever, you would expect the opposite pattern: a small number of ads pointed at many carefully constructed audiences. Instead the spend has moved into producing many distinct creatives and letting delivery sort out who sees what.
Version counts point the same direction. Ads in the archive average 3.5 creative versions each, and auto brands average 5.0, because varying the creative per person has become the practical way to reach different people with one campaign. See why brands run so many versions of the same ad.
Broad versus detailed, practically
| Broad targeting | Detailed targeting | |
|---|---|---|
| Audience size | Large | Small |
| Cost per person reached | Lower | Higher |
| Depends on | Creative quality | Audience accuracy |
| Fails when | Creative is generic | Signal is thin or audience is exhausted |
| Best for | Most advertisers, most of the time | Genuinely niche products with a definable audience |
The honest default for most advertisers: go broad within your geography, set the right objective, exclude the obvious, and put your effort into creative.
Where to put the effort instead
If targeting is no longer the lever, the effort has to go somewhere, and the answer is angles. A single audience will contain people with very different reasons to buy. You reach them by saying different things, not by slicing them into smaller groups.
That means your job is producing three to five genuinely distinct creative angles, testing them properly, and replacing what fades. See how many Facebook ads you should run at once and how to test Facebook ads.
Common questions
Is broad targeting better than detailed targeting?
For most advertisers, yes. Broad targeting with strong creative usually beats narrow interest stacking, because the delivery system finds buyers more efficiently than manual audience definition can. Narrow targeting still helps for genuinely niche products with a clearly definable audience.
Should I still use lookalike audiences?
Yes, when the source list is good. A lookalike built from your best customers still performs well. A lookalike built from all site visitors mostly reproduces your existing traffic mix and adds little.
How small is too small for an audience?
If an audience is small enough that your ads reach the same people repeatedly within a couple of weeks, it is too small for sustained spend. Frequency climbs, fatigue sets in fast, and costs rise. Widen the audience or rotate creative more aggressively.
Does targeting affect ad cost?
Yes. Narrow audiences generally cost more per person reached, because you are bidding hard for a small pool. Broad audiences cost less per person but waste delivery if the creative does not qualify who should care. See how much Facebook ads cost.