Understanding Campaign Targeting Options
Region, interest, device and publisher tier are the four targeting dimensions. Each filter shrinks your pool — two is the sweet spot, three is aggressive, four often starves the campaign. Loosen the narrowest filter first.
Targeting is the setting most advertisers get wrong in the same direction: too tight, too early. Understanding what each filter actually does — and what it costs you — is most of the skill.
The Four Targeting Dimensions
Region controls where your campaign is visible, down to country and major metro level. Interest targeting matches your campaign to publishers whose audiences already care about your category.
Device targeting matters more than most advertisers expect. A mobile-first landing page shown to desktop users will underperform no matter how good the offer is.
Publisher tier is the fourth, and the least understood. It filters by the publisher’s track record — approval history and review quality — rather than by audience. Restricting to higher tiers raises average review quality and shrinks your pool considerably.
Here is how they compare in practice:
| Dimension | What it controls | When it earns its keep |
|---|---|---|
| Region | Country and major metro visibility | Language-specific offers, region-locked products, local services |
| Interest | Publisher audience category | Niche products where general audiences cannot evaluate the offer |
| Device | Desktop vs. mobile | Your landing page is genuinely optimised for one and not the other |
| Publisher tier | Publisher track record | You need depth over volume and can pay for it |
A note on region and language
Campaigns are matched to publishers who actually write in your audience’s language — a surprisingly common gap in regional advertising. Targeting a region is not the same as targeting a language, and getting reviews in a language your customers do not read makes the feedback useless to you.
Each region operates its own verified publisher pool rather than drawing from a shared global one, so regional targeting genuinely changes who sees your campaign rather than just filtering an existing list.
Layering Filters Effectively
Each filter you add shrinks your reachable pool. Two filters is usually the sweet spot; three is aggressive; four will often starve the campaign entirely.
If your campaign is not spending its daily budget, the first thing to loosen is your narrowest filter — not your bid.
That last point deserves emphasis, because the instinct runs the other way. An underspending campaign feels like a pricing problem, so people raise the bid. But if the pool is too small, no bid clears it — you are competing for publishers who are not there. Widen first, then price.
How to know which filter is narrowest
Remove them one at a time and watch reachable pool size before launching. The one whose removal changes the number most is your binding constraint. Usually it is interest targeting, occasionally publisher tier, rarely region.
The starved-campaign checklist
If a campaign is not spending:
- Loosen the narrowest filter and wait 48 hours
- If still underspending, drop to two filters total
- Check device targeting is not excluding the majority of your reachable audience
- Only then look at budget or bid
Common Targeting Mistakes
The most common mistake is targeting the audience you wish you had rather than the one that converts. Let the first week of data tell you who is actually responding, then optimise toward them.
This happens more often than not. In campaigns that launch broad and narrow later, the best-performing segment frequently turns out not to be the one the advertiser built the product for. You cannot discover that if you excluded it on day one.
Four more worth avoiding:
Stacking filters that overlap. Interest targeting plus a narrow publisher tier plus a metro-level region often selects for a pool of a few dozen publishers. The campaign technically runs and tells you nothing.
Device targeting on assumption. Check your own analytics before restricting. Many advertisers exclude mobile on a page that receives most of its traffic from phones.
Never revisiting it. Targeting set in week one and left alone for three months is targeting based on a guess you have since disproved.
Narrowing to fix quality. If reviews are shallow, the brief is usually the problem, not the audience. Tighten the brief before tightening targeting — it is cheaper and more often the actual cause.
A Sequence That Works
- Launch with one filter at most, or none. Accept that some feedback will be off-target.
- Run a full week. Do not touch it.
- Segment the results by region, interest, device and tier, ranked by cost per verified action.
- Cut the bottom performers and move that budget rather than adding to it.
- Repeat weekly, one change at a time, 48 hours between changes.
By week three you will have targeting derived from evidence rather than assumption, and it will almost certainly differ from what you would have set on day one.
Frequently Asked Questions
How many filters should I use?
Two is the sweet spot for most campaigns. Three is aggressive and should be a deliberate choice. Four will usually starve the campaign of the volume it needs to tell you anything.
My campaign is not spending its budget. What do I change first?
Loosen the narrowest filter, not the bid. An underspending campaign is almost always a pool-size problem rather than a pricing one, and no bid clears a pool that is too small.
Does region targeting also control language?
No — they are separate concerns. Each region runs its own verified publisher pool, and campaigns are matched to publishers who write in your audience’s language. Targeting a region without considering language is a common source of feedback you cannot use.
Should I restrict to higher publisher tiers?
Only when you need depth over volume and can absorb the smaller pool. Tier restriction raises average review quality but shrinks reach considerably, so it is rarely the right first filter.
Can I change targeting mid-campaign?
Yes, and you should — weekly. Change one dimension at a time and allow 48 hours before judging the result, or you will not know which change caused what.
Reviews are shallow. Should I narrow my targeting?
Usually not. Shallow reviews are far more often a brief problem than an audience problem. Tighten the brief to one specific question first; it is cheaper and more often the actual cause.
Related Reading
Setting a budget that actually converts covers how budget and targeting interact — the two settings are not independent. Advertiser campaign promotion: 5 mistakes that waste your budget leads with over-targeting for a reason, and reading your analytics covers the segmentation you need to make cuts properly.
For regional campaigns in particular, see regional targeting across twelve markets.
Further Reading
