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 this free checker reads the targeting settings of your active ad sets and shows you which ones are competing with each other.
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, ad sets stuck in the learning phase because none of them collects enough results, and CPMs drifting up as each one fights for a shrinking slice of the same audience. Consolidating overlapping ad sets is one of the cheapest fixes in Facebook ads — it’s also a ranked cause in our guide to Facebook ads not delivering.
Three steps, one read of your targeting settings.
- Step 1
Connect your Meta account.
Sign in and connect through Meta’s own API with read permissions you grant and can revoke — the same connection the free audit uses. Nothing in your account is changed.
- Step 2
Pick an ad account.
Choose which of your ad accounts to check. Kelpi reads the targeting settings of its active ad sets — paused ad sets are counted but left 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 run identical broad geo and age windows — the three targeting patterns that put your own ad sets in the same auctions.
What this is — and 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 are set to target and tells you which ones are aimed at the same people.
See which of your ad sets compete.
Free, read-only, and a couple of minutes end to end: connect, pick an account, and get the competing groups with the shared audiences and interests named.
Check my ad sets — 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, or exclude one audience from the other, and let the survivor exit learning faster.
- 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 — as an AI-written report on your connected account.