Check your Facebook ad sets for audience overlap
Audience overlap is two or more of your ad sets targeting the same people: the same custom audience, the same interests in the same places, or the same broad geo and age window. Connect your Meta account and I’ll read the targeting settings of your active ad sets, then show you which ones are competing with each other.
This is not an audience-picking tool. Meta took most of that old leverage away; this shows when your own structure is making the platform’s job harder.
Read-only. Nothing in your account changes.
Overlapping ad sets cannibalize each other.
When two of your ad sets are aimed at the same people, they keep landing in the same auctions. Meta only enters one of your ads per auction, so the rest simply lose the impression. Your own ad sets knock each other out instead of reaching new people.
The bill shows up as starved delivery: budget split across competing ad sets, learning phases that drag on because no set collects enough results, and CPMs drifting up as each one fights for the same audience. Consolidating overlapping ad sets is one of the cheapest fixes in Facebook ads. It’s also a ranked cause in the guide to Facebook ads not delivering. The fix for overlap is fewer competing structures, not a cleverer targeting tree.
Three steps, one read of your targeting settings.
- Step 1
Connect your Meta account.
Sign in through Meta with read permissions you grant and can revoke. Nothing in your account is changed.
- Step 2
Pick an ad account.
Choose the ad account to check. Kelpi reads active ad-set targeting settings; paused ad sets stay out of the comparison.
- Step 3
Get the competing groups.
The checker groups ad sets that share a custom audience, stack the same interests in the same locations, or use identical broad geo and age windows.
What this is, and what it isn’t. This is a comparison of targeting settings, nothing more. It doesn’t reproduce the percentage Venn diagram from Ads Manager’s audience-comparison view, and it makes no audience-size estimates. It reads what your active ad sets target and tells you which ones are aimed at the same people.
See which of your ad sets compete.
Free and read-only: connect, pick an account, and get the competing groups with the shared audiences and interests named.
Check my ad sets for free- How do I check audience overlap on Facebook?
- Ads Manager can compare saved and custom audiences: open the Audiences tab, select up to five, and choose Show audience overlap to see how their definitions intersect. That view never looks at your ad sets, though. To find competing ad sets you would open each one and compare targeting by hand. This checker does the ad-set pass for you: connect your Meta account and it reads the targeting settings of your active ad sets and groups the ones aimed at the same people.
- What % overlap is too much?
- There is no published threshold, and this tool does not compute a percentage. Meta’s auction decides how much two ad sets actually collide, and no targeting comparison can see inside it. The practical rule: any two active ad sets that share a custom audience, or stack the same interests in the same locations, deserve a look. Consolidate them and let the survivor exit learning faster. (Exclusions are the narrow exception, not the default, and they add structure you will have to maintain.)
- Did Meta remove the audience overlap tool?
- Not as of mid-2026. Ads Manager still offers its audience-comparison view (Audiences tab, select up to five audiences, Show audience overlap). But that Venn diagram compares audience definitions, not your live ad sets, and Meta has trimmed enough of its other diagnostic surfaces over the years that many advertisers assume it is gone. Either way, it cannot answer the expensive question (which of your active ad sets are competing for the same people), which is what this checker reads from your targeting settings.
Overlap is one of six leaks.
The free Facebook ads audit flags overlap plus five more areas (structure, budget, creative, tracking, and performance) in an AI-written report on your connected account.