Who follows both? X audience overlap checker

Put two X accounts in and this page shows which accounts follow both of them, read out of our own follow graph over the 18,486,455 X accounts we index. Useful for sizing up a competitor, checking whether two creators share a crowd before paying either of them, or finding the people who already sit in both worlds. Every other tool that does this asks you to sign up first. This one does not, and there is no export limit because there is nothing to export around.

Handles or profile URLs both work. No account, no email, no daily limit.

Worked examples

What the numbers on this page mean

PlayerSells indexes 18,486,455 X accounts and holds a capped sample of each one’s followers, so an overlap here is measured between the indexed slices of two audiences rather than between the audiences themselves. One comparison reads at most 25,000 indexed followers per side and lists the 24 largest accounts that appear on both. The index was last profiled on 24 August 2026, over a 45,308-account sample.

Those denominators matter because the index is mostly small accounts. On 24 August 2026 the median indexed X account had 550 followers, 2,046 was the 75th percentile and 7,085 the 90th. An account with millions of public followers is therefore represented in this graph by a few thousand of them, which is why the percentage on this page is taken against the smaller indexed set and never against either public follower count.

The collection method also shapes who shows up. Edges arrive from the following lists of accounts we crawl, so a shared follower is more likely to be an account substantial enough to have been crawled itself. That makes the answer closer to “which notable accounts follow both” than to a raw headcount. It is usually the more useful question, but it is a different one, and it is the reason both indexed set sizes are printed beside every figure instead of being hidden in a footnote.

Index size and percentiles are our own measurements over the PlayerSells X catalog, last computed on 24 August 2026. The per-comparison ceiling of 25,000 indexed followers per account and the 24-row shared list are limits of this tool, not of X.

What this measures, exactly

This is the overlap between the parts of two audiences we have indexed, not between the audiences themselves. Our graph is built by reading the following lists of accounts we crawl and a capped sample of each crawled account's followers, so nobody's follower list in it is complete. An account with four million followers might be represented by a few thousand of them here. Because of how those edges are collected, the accounts you see skew toward ones substantial enough to have been crawled themselves, which makes the answer closer to "which notable accounts follow both" than to a raw headcount. That is usually the more useful question, but it is a different one, so the page states both indexed set sizes next to every number rather than reporting a sampled overlap as if it were a total.

Handles we have never crawled are reported as missing rather than fetched on demand. Comparisons are cached for a day, so a link you share loads instantly for whoever opens it.

Frequently asked questions

What does this tool actually compare?

The parts of two audiences PlayerSells has indexed, not the audiences themselves. Our follow graph is built by reading the following lists of accounts we crawl plus a capped sample of each crawled account's followers, so no account's follower list in it is complete. Both indexed set sizes are printed next to every number for exactly that reason.

Why is the percentage not taken against the public follower counts?

Because dividing a sampled intersection by a full follower count is wrong by orders of magnitude while looking entirely reasonable. The rate on this page is the shared count as a share of the SMALLER indexed set, which answers the question people are really asking: how much of the narrower audience already sits inside the wider one.

Do I need an account, an email or a paid plan?

No. There is no signup, no email gate, no daily limit and no export cap. The comparison runs on a plain GET request, so the result URL can be shared and it loads for whoever opens it.

What does the capped warning on a result mean?

A single comparison reads at most 25,000 indexed followers per account. When either side hits that ceiling the page says so, because a truncated intersection is a smaller number that looks exactly like a real one. The true overlap for a capped pair is larger than the figure shown.

Why does it say an account is not in the index?

We crawl a large slice of X but not all of it: 18,486,455 accounts as of 24 August 2026. A handle we have never reached is usually new, protected or spelled differently, and reporting zero shared followers for it would be a confident wrong answer rather than a missing one.

How many shared accounts does it list?

The total number following both is exact within the indexed sets. The list underneath shows the 24 largest of them, ordered by follower count, so the names that carry the most weight appear first.

How fresh is a comparison?

Each pair is cached for a day. The follow graph is rebuilt far more slowly than that, so a fresher read would return the same answer at a much higher cost.

PlayerSells is not affiliated with X Corp. Follower counts, index size and the percentiles quoted on this page are our own measurements over the PlayerSells X catalog, last computed on 24 August 2026. Shared-follower counts are exact within the indexed slices they are taken from and are not a statement about either account’s full follower list.