Audience Overlap

Summary#

Audience Overlap compares your domain against up to three competitors and measures how much of the search audience you actually share with each. The overlap comes from keywords where both sites rank in Google, which is a real, verifiable proxy for a shared audience rather than a panel estimate.

Purpose#

"Competitor" is usually a guess. Two companies can sell similar things and reach completely different people, while a company you have never considered a rival can be capturing half the same searches. Audience Overlap replaces the guess with a number, so you know which rival is genuinely competing for your audience and which one is operating next door to you rather than against you.

Overview#

Enter two to four domains separated by vs or by commas. The first domain is treated as yours; the rest are competitors, up to three of them.

Metric Vault pulls each domain's organic rank overview, then asks the provider for the keyword intersection between your domain and each competitor in turn. The overlap percentage is the number of shared ranking keywords divided by the smaller of the two keyword counts, capped at 100%. Using the smaller side means a giant competitor cannot artificially deflate your overlap simply by being bigger.

The measured layer is: each domain's monthly organic traffic estimate, each domain's organic keyword count, and the pairwise shared-keyword count and percentage. Those are the numbers to quote.

Audience-profile dimensions — interests and affinity, demographics, device split, countries, behaviors and a persona — have no DataForSEO source, so the report does not show them. It renders the measured overlap layer above and the recommendations that follow from it.

Benefits#

• A single number that says how directly a rival competes for your audience.
• Built from Google rankings you can verify, not from a third-party visitor panel.
• Compares up to three competitors in one run for one credit.
• The Venn diagram and Audience Split panel make the shared-versus-unique story obvious in a meeting.
• Hands off naturally to Gap Finder on whichever rival overlaps most.

Use Cases#

• Choosing who to fight. Four rivals, one budget; the overlap scores rank them by how much of your audience is actually at stake.
• Board narrative. "We share 46% of our search audience with them" is a sharper claim than "they are our main competitor".
• Partnership screening. Low overlap with a similar company can indicate a complementary audience worth a joint campaign.
• Category mapping. Running several pairings shows which players cluster together and which sit apart.
• Post-launch check. After entering a new segment, overlap with the incumbent should rise; if it does not, you are not reaching the same searches.

Requirements#

• A signed-in Metric Vault account.
• A paid plan. The Free plan covers the zero-credit technical tools only.
• One credit available. See How credits work.
• At least two domains in the input. A single domain returns nothing, because overlap is measured between audiences.

Permissions#

Plan decides access; team role does not.

Cost#

1 credit per run, printed on the button as Analyze Audience · 1 report. Three competitors cost the same as one.

It is a light tool: recorded in your usage, never blocked when the monthly premium allowance is spent, subject to the 100 light-tool calls per hour fair-use limit.

A result served from the shared data cache still charges 1 credit; the cache holds this tool's data for seven days. Reopening a saved result is free. See How credits work and Result caching and freshness.

Navigation Path#

Dashboard → Competitors & Backlinks → Audience Overlap

Inputs#

The screen states the requirement twice, in the card and beneath it: Format required: yourdomain.com vs competitor.com — a single domain returns no overlap. Add up to 3 rivals with extra vs.

Step-by-Step Guide#

1. Open Dashboard → Competitors & Backlinks → Audience Overlap.
2. Optional: press See example to view a real stored report at no cost. The TRY chips run for real and do cost a credit.
3. Type your domain, then vs , then each competitor: yourdomain.com vs competitor.com vs another.com.
4. Click Analyze Audience · 1 report, or press Enter in the input field.
5. If you have run this comparison before, choose Open saved result (free) or Run fresh (1 credits).
6. Read the Overlap Score and the Venn diagram first, then the pairwise table.
7. Use Export Overlap Report, Save Audience View or Run New Comparison from the action row under the hero.

Reading the Results#

The hero shows both favicons with vs between them, a VERIFIED · DataForSEO pill, and a Venn diagram whose circles are sized by each domain's audience and positioned by the overlap percentage. The number printed in the intersection is the same one as in the Overlap Score tile.

The four hero tiles.

• Overlap Score — the average overlap across the competitors you entered, labelled Strong overlap at 60% or more, Moderate overlap from 30%, Light overlap from 10%, and Distinct audiences below that. Strong overlap means you are fighting over the same searches and every ranking gain is taken from them directly. Distinct audiences means you have been calling them a competitor out of habit.
• Shared Audience — the estimated monthly cross-visitors implied by the overlap and your traffic, labelled estimated monthly cross-visitors. It is a derived figure, not a measured visitor count.
• <your domain> Monthly Uniques — your organic traffic estimate.
• <competitor> Monthly Uniques — theirs. The ratio between the two matters more than either number: a 45% overlap with a rival three times your size is a much larger absolute threat than the same percentage against a smaller one.

The action row underneath carries Export Overlap Report, Save Audience View and Run New Comparison, plus a line reading Scanned · Just now · N competitors.

Audience Size by Domain charts every domain's monthly organic traffic estimate side by side, so relative scale is immediate.

Pairwise Audience Overlap is the measured core of the report. Each row pairs your domain with one competitor and gives the overlap percentage and the shared keyword count. Read the rows in order: the highest percentage is your most direct rival, and it is the one to send to Gap Finder. A row with a high shared count but a low percentage means the competitor is much larger than you and the shared keywords are a small part of their footprint.

Audience Split breaks the strongest pairing into three tiles — unique to you, shared, and unique to them. This is the panel to put in a deck. The unique-to-them figure is the audience you are not reaching at all, and it is usually a better growth target than the contested middle.

Sample Shared Keywords shows example terms where both domains rank, as concrete illustration of what "shared audience" means in practice. Where the provider has not supplied a sample list for the pairing, the panel shows representative category terms instead, so treat the examples as illustrative and use Gap Finder when you need the verified list.

Interests and affinity, demographics (age, gender, income, education), device preference, top countries, visitor behaviors and an audience persona have no DataForSEO source, so the report does not render them. An absent panel is honest, an invented one is not. Use Gap Finder and your own analytics when you need audience research.

Recommendations closes the report. It names your strongest overlap with its percentage and shared keyword count, points you at Gap Finder for the contested terms, suggests studying low-overlap rivals for untapped sub-topics, and states plainly how overlap is measured. The recommendation panel below can expand it into a full plan; see Get Recommendations.

Examples#

Screenshots#

Tips#

• Enter all three competitors in one run. It costs the same as one and the comparison between them is where the value is.
• Put your own domain first. The first domain is the reference point for every overlap figure.
• Test a rival you assume is irrelevant. A surprisingly high score is the most useful result this tool produces.
• Follow the highest-overlap competitor straight into Gap Finder to turn the percentage into a keyword list.

Best Practices#

• Quote the overlap percentage and the shared keyword count together. The percentage without the count invites the wrong conclusion about scale.
• Re-run quarterly. The shared cache holds this data for seven days and overlap moves slowly.
• Keep the modelled profile panels out of client deliverables, or label them clearly as illustrative.
• Pair with Competitor Battle when you need a head-to-head on authority, backlinks and traffic rather than audience.

Common Mistakes#

• Entering one domain. The most common error. You get Enter at least two domains to compare, e.g. "asana.com vs monday.com".
• Adding more than three competitors. Only the first three after your domain are read.
• Using a separator other than vs or a comma. A slash or an ampersand is not recognized and the whole string is read as one domain.
• Quoting demographics as measured. Those panels are modelled context.
• Reading a low percentage as "not a competitor". Check the shared keyword count too; a low percentage against a very large rival can still be thousands of contested keywords.

Limitations#

• Two to four domains per run; a maximum of three competitors.
• Overlap is measured through shared Google keyword rankings, which is a search audience proxy, not clickstream or panel data.
• Monthly uniques are the provider's organic traffic estimate, not analytics sessions.
• Shared Audience is derived from the overlap percentage and your traffic estimate.
• Interests and affinity, demographics, device split, countries, behaviors and persona have no DataForSEO source and are not shown in the report.
• Measurement is the United States, English-language index.
• A domain with no rankings in the index returns the no-data state for the whole comparison.

Troubleshooting#

FAQs#

Where does the overlap number come from? From keywords where both domains rank in Google. The shared count is divided by the smaller domain's keyword total, so size differences do not distort it.

Is this real visitor data? No, and it does not claim to be. It is a search-audience proxy built on ranking overlap. Metric Vault uses it precisely because it is verifiable, unlike panel estimates.

Why are demographics shown if they are not measured? They provide profile context around the measured overlap. They are modelled from the domain and category rather than observed, so keep them out of anything you present as research.

Does adding competitors cost more? No. One credit covers up to three competitors in a single run.

Can I compare two competitors without including my own domain? Yes. The first domain you enter is simply the reference point; it does not have to be yours.

Does a cached result still cost a credit? Yes. A shared-cache hit charges 1 credit. Only reopening your own saved result is free.