Online IQ testing platform: professional-style cognitive tests, a composite score dashboard, free calculators and community puzzles, built by the r/iqtest community.
For years the ROne-line growth story, compiled by us from public sources; speculation is marked separately below.
Checkout: checkout.stripe.com
“'leaderboardBenchmark' nav item; 'Enjoy solving puzzles with the community'; 'Developed by the r/iqtest community.'; group testing via support ('administer IQ t”Quote from the site
New-user source: SEO (Non-brand search). About 22% of new users come from non-brand search (core iq test, core iq); brand keywords 65.6%; direct 50.8%; social 7.4% from Reddit, X, YouTube (tied to the r/iqtest community). Referrals from note.com, evernote.com etc., each under 1%. Leaderboards and community puzzles bring returning users back directly.
Top channel measured by Similarweb, others estimated by rank
| Attributable new users, last month | Share |
|---|---|
| SEO | 22% |
| 7% | |
| Other | 70% |
Direct + brand search 66%. Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.
| Country | Share of visits |
|---|---|
| United States | 40.21% |
| Canada | 13.05% |
| Egypt | 3.74% |
| United Kingdom | 3.48% |
| India | 3.04% |
English
Reddit, X-twitter, YouTube
no AI referrer; outgoing AI Chatbots and Tools 5.39%
726 keywords · brand ~66% · organic 100% / paid 0%
| Similarweb top 5 keywords |
|---|
| core iq test |
| cognitive metrics |
| cognitivemetrics |
| core iq |
| the core iq test |
Non-brand queries: core iq test, core iq, the core iq test
6 referring sites
| Site | Share of referrals |
|---|---|
| note.com | 0.6% |
| evernote.com | 0.48% |
| neocities.org | 0.27% |
| Category | Share of referrals |
|---|---|
| Computers Electronics and Technology - Other | 20.92% |
| Video Games Consoles and Accessories | 8.08% |
| Investing | 3.29% |
| Programming and Developer Software | 0.48% |
| Social Sciences | 0.27% |
About 8,596 last month (Similarweb estimate), #467 of 606; the month before was 9,010. Opening checkout is not paying, so this is not revenue.
New-user source: SEO (Non-brand search). New users mostly come from need-based searches About 22% of new users come from non-brand search (core iq test, core iq); brand keywords 65.6%; direct 50.8%; social 7.4% from Reddit, X, YouTube (tied to the r/iqtest community). Referrals from note.com, evernote.com etc., each under 1%. Leaderboards and community puzzles bring returning users back directly.
CORE test is free; group testing has discounted pricing (amount not listed); prices of other paid tests not found
Dossier confidence: medium. Parts 1 and 2 come from reading the site and Similarweb data; part 3 from public reporting, founder posts, Wayback snapshots, WHOIS and similar, with speculation marked.
The number: checkout visits is Similarweb's estimate of visits from the site to a checkout payment page; opening checkout is not paying, so this is not revenue. Small sites land on fixed buckets.
Data through last month. Page updated 2026-10-26.
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