# THEIQTESTS.COM

> Take a free IQ test and see where you stand instantly. Measure intelligence across 5 cognitive domains; the exact score and full report are one payment, no subscription.

THEIQTESTS.COM is an online cognitive assessment platform offering multiple intelligence tests modeled on established psychometric frameworks. Taking a test is free and needs no registration: the free result shows your score range, ability profile and speed; the exact IQ score, percentile, full report, PDF and certificate are one payment, no subscription.

Operated by Sales Professionals, Noordwijk, Netherlands.

## Available Tests

### IQ & Cognitive Assessments
- **Standard IQ Test**: Comprehensive assessment across 5 cognitive domains (Logical Reasoning, Pattern Recognition, Spatial Intelligence, Memory, Verbal Ability). 20 minutes, instant results.
- **CHC Cognitive Test**: Based on the Cattell-Horn-Carroll theory of cognitive abilities. Measures fluid reasoning, crystallized intelligence, visual processing, short-term memory, and processing speed.
- **WAIS Intelligence Test**: Inspired by the Wechsler Adult Intelligence Scale. Evaluates verbal comprehension, perceptual reasoning, working memory, and processing speed.
- **Mensa-Style IQ Test**: Aligned with Mensa entry assessment standards. Pattern recognition, logical sequences, and abstract reasoning.
- **Stanford-Binet Test**: Based on the Stanford-Binet Intelligence Scale. Measures fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing, and working memory.
- **MoCA Cognitive Test**: Montreal Cognitive Assessment screening for visuospatial/executive function, naming, memory, attention, language, abstraction, and orientation.

### Personality & Type
- **Personality Test**: Big Five-based personality type assessment.
- **Big Five Personality Test**: 25-statement OCEAN model assessment.
- **16 Personalities Test**: 24-statement four-axis type test producing one of sixteen personality types.
- **Enneagram Test**: 27-statement assessment across the nine motivational Enneagram types, with wing.
- **DISC Test**: 24-statement behavioural assessment across Dominance, Influence, Steadiness, Conscientiousness.
- **Archetype Test**: 36-statement assessment across the twelve Jungian archetypes.
- **Character Strengths Test**: 24-statement VIA-informed assessment across the six universal virtues.
- **EQ Test**: 25-statement emotional intelligence assessment on Goleman's five-domain model.
- **Career Test**: 24-statement Holland (RIASEC) career-interest assessment with fitting occupations.
- **Political Identity Test**: 24-statement four-axis political compass, each quadrant described even-handedly.

### Mental Health Screenings
All screenings are non-diagnostic self-report tools. Results include an explicit statement that only a qualified clinician can diagnose, and mental-health screenings show support resources to every visitor regardless of score.
- **ADHD Screening**: 25-statement DSM-5-aligned adult ADHD screening across five dimensions.
- **Autism Screening**, **AQ-10** (Allison & Baron-Cohen 2012 short form), **RAADS-R** (full 80-item Ritvo scale).
- **AuDHD Screening**: 24-statement screening for the combined ADHD-and-autistic profile.
- **Depression Screening**: 24-statement PHQ-informed screening across mood, interest, energy, and cognition. Excludes the suicidal-ideation item by design.
- **Anxiety Screening**: 24-statement GAD-informed screening across worry, arousal, avoidance, and panic.
- **OCD Screening**: 24-statement OCI-R-informed screening across intrusions, checking, contamination, ordering.
- **Bipolar Screening**: 24-statement MDQ-informed mood-cycle screening.
- **BPD Traits Screening**: 24-statement DSM-5-informed borderline-traits screening.
- **Trauma Screening**: 24-statement PCL-informed post-traumatic screening across four clusters.
- **Burnout Test**: 25-statement burnout risk profile on the Maslach Burnout Inventory framework.

### Dark-Side Traits
- **Dark Triad Test**: 27-statement Short Dark Triad (SD3) assessment.
- **Narcissism Recognition Test**: 25-statement tool for recognising narcissistic patterns in another person.
- **Narcissism Test (Self)**: 24-statement self-assessment across grandiose and vulnerable facets.
- **Antisocial Traits Screening**: 24-statement DSM-informed antisocial-traits screening.

### Relationships
- **Love Language Test**: Five Love Languages assessment.
- **Attachment Style Test**: 24-statement assessment across the four adult attachment styles.
- **Love Compatibility Test**, **Relationship Stability Test**, **Breakup Recovery Test**.

### Self-Development
- **Productivity Score**, **Net Worth Profile**, **Future Income** — 25-statement profiles each.

### Entertainment (explicitly labelled, no scientific claim)
- **Mental Age Test**, **Spirit Animal Test**, **Soulmate Test** — presented with a visible "just for fun" badge and a disclaimer stating they are not psychological instruments.

## Key Features

- Free to take — no registration needed
- Instant free result: score range, ability profile, speed; exact IQ score and percentile with the one payment
- Detailed cognitive profile across 5 domains with visual breakdown
- PDF report and certificate with your name (one payment, no subscription)
- Shareable results card for social media
- Available in 20 languages
- Mobile-responsive design
- GDPR-compliant data handling

## Supported Languages

English, Dutch (Nederlands), German (Deutsch), French (Français), Spanish (Español), Italian (Italiano), Portuguese (Português), Swedish (Svenska), Norwegian (Norsk), Danish (Dansk), Polish (Polski), Turkish (Türkçe), Arabic (العربية), Hindi (हिन्दी), Japanese (日本語), Korean (한국어), Chinese (中文), Indonesian (Bahasa Indonesia), Vietnamese (Tiếng Việt), Thai (ไทย).

## Site Structure

### Main Pages
- `/` — Homepage with test selection and platform overview
- `/` — Homepage and landing page for the free IQ test (the old `/free-iq-test` URL redirects here)
- `/blog/iq-test-data-study-2026` — 2026 data study: aggregated findings from 3,834 completed IQ tests (time taken vs score, domain difficulty, time of day)
- `/blog/iq-test-questions-explained` — 12 original IQ test questions with answers and worked explanations: matrices, number series, analogies, spatial and memory items, and what each measures.
- `/blog/is-there-a-truly-free-iq-test` — Most IQ tests are free to start; fewer give a free score. What ’free’ can mean, five questions to ask before you start, and when you need a psychologist.
- `/blog/iq-percentile-chart` — A full IQ percentile chart from 55 to 160: what share of people score below each IQ, how rare each score is, and how the percentiles are calculated.
- `/blog/how-rare-is-an-iq-of-140` — An IQ of 140 is about 1 in 260 people; 145 is 1 in 740; 160 is 1 in 31,000. How the rarity is calculated, why the top end is uncertain, what the labels mean.
- `/blog/how-long-does-an-iq-test-take` — Full-scale IQ tests take 60–90 minutes; online tests 6–25 minutes. What the time limit does to your score, and the speed sweet spot from 3,834 real tests.
- `/blog/fluid-vs-crystallized-intelligence` — Fluid intelligence is reasoning with new problems; crystallized intelligence is knowledge built over time. How each is measured and how they change with age.
- `/blog/ravens-progressive-matrices-explained` — What Raven's Progressive Matrices measure, how the 3×3 puzzles are built, the rules behind them, and why matrix reasoning is the backbone of modern IQ tests.
- `/blog/is-iq-genetic` — IQ is partly heritable: twin and adoption studies put heritability at about 0.4 in childhood and 0.6–0.8 in adulthood. What it means and what environment does.
- `/blog/does-iq-predict-success` — IQ is one of the best single predictors of job performance, education and income, but the correlations are moderate (0.2–0.5). What that means in practice.
- `/blog/flynn-effect-explained` — IQ scores rose about 3 points per decade through the 20th century. What the Flynn effect is, the leading explanations, and the reversal seen in some countries.
- `/blog/are-online-iq-tests-accurate` — Some online IQ tests are reasonable estimates, most are entertainment. Seven things that separate the two: items, norms, timing, scoring, error margins, claims.
- `/blog/how-to-prepare-for-an-iq-test` — Practice raises IQ test scores by a few points through familiarity and pacing, not by raising intelligence. A one-week plan before a supervised or online test.
- `/blog/what-is-a-culture-fair-iq-test` — Culture-fair IQ tests use pictures and patterns, not words, so language and schooling affect the score as little as possible. What they measure, and the limits.
- `/blog/what-is-the-g-factor` — The g factor is the general ability all cognitive tests share: people who do well on one tend to do well on the others. Where it comes from, what it leaves out.
- `/about` — About the team, credentials, mission, and methodology
- `/research` — The psychometric methodology behind the tests
- `/help` — FAQ and help center
- `/contact` — Contact form and support
- `/press` — Press resources and media kit
- `/careers` — Career opportunities
- `/pricing` — Pricing information

### Test Pages
- `/quiz` — Standard IQ test questions
- `/chc-quiz` — CHC cognitive test questions
- `/wais-quiz` — WAIS intelligence test questions
- `/mensa-quiz` — Mensa-style IQ test questions
- `/stanford-binet-quiz` — Stanford-Binet test questions
- `/moca-quiz` — MoCA cognitive test questions
- `/personality-quiz` — Personality test questions
- `/love-quiz` — Love language test questions
- `/bigfive-quiz`, `/eq-quiz` — Big Five and EQ assessments
- `/sixteen-quiz` — 16 Personalities type test
- `/enneagram-quiz` — Enneagram nine-type test
- `/disc-quiz` — DISC behavioural style test
- `/archetype-quiz` — Twelve Jungian archetypes
- `/strengths-quiz` — Character strengths (VIA six virtues)
- `/career-quiz` — Holland RIASEC career-interest test
- `/political-quiz` — Four-axis political compass
- `/adhd-quiz`, `/autism-quiz`, `/aq-test`, `/raads-r-test`, `/audhd-quiz` — neurodevelopmental screenings
- `/depression-quiz`, `/anxiety-quiz`, `/ocd-quiz`, `/bipolar-quiz`, `/bpd-quiz`, `/trauma-quiz`, `/burnout-quiz` — mental-health screenings
- `/darktriad-quiz`, `/narcissism-quiz`, `/narcissism-self-quiz`, `/sociopath-quiz` — dark-side trait tests
- `/attachment-quiz`, `/compatibility-quiz`, `/stability-quiz`, `/breakup-quiz` — relationship tests
- `/productivity-quiz`, `/networth-quiz`, `/income-quiz` — self-development profiles
- `/mental-age-quiz`, `/spirit-animal-quiz`, `/soulmate-quiz` — entertainment quizzes (not assessments)

### Test Introduction Pages
- `/chc-cognitive-test` — CHC test description and start
- `/wais-iq-test` — WAIS test description and start
- `/mensa-iq-test` — Mensa test description and start
- `/stanford-binet-test` — Stanford-Binet test description and start
- `/moca-cognitive-test` — MoCA test description and start

### Results Pages
- `/results` — Standard IQ test results with full cognitive profile
- `/chc-results` — CHC cognitive test results
- `/wais-results` — WAIS intelligence test results
- `/mensa-results` — Mensa-style test results
- `/stanford-binet-results` — Stanford-Binet test results
- `/moca-results` — MoCA screening results
- `/personality-results` — Personality type results
- `/love-results` — Love language results

### Legal Pages
- `/privacy` — Privacy policy (GDPR-compliant)
- `/terms` — Terms of service
- `/refund` — Refund policy

## API

- `POST /api/create-checkout` — Create a Stripe checkout session (supports 20+ currencies)
- `POST /api/verify-payment` — Verify payment completion
- `POST /api/share` — Create a share token for social verification
- `POST /api/share/record` — Record a completed social share
- `GET /api/share/verify` — Check share token status
- `POST /api/share/email` — Submit email for results delivery and verification
- `POST /api/send-results-email` — Send IQ results summary via email
- `POST /api/send-welcome-email` — Send welcome email to new subscribers
- `POST /api/send-scheduled-emails` — Trigger scheduled email campaigns

## Contact

- **Email**: support@iq-exams.com
- **Website**: https://theiqtests.com/contact
- **Company**: Sales Professionals, Noordwijk, Netherlands

## Technical Details

- Hosted on Cloudflare Pages with Cloudflare Workers (serverless functions)
- Cloudflare D1 (SQLite) for database
- Cloudflare KV for session token storage
- Stripe for payment processing
- Vanilla JavaScript frontend (no framework)
- Responsive, mobile-first design

## Optional

- RSS Feed: None
- Sitemap: https://theiqtests.com/sitemap.xml
- Sitemap (Baidu/Chinese): https://theiqtests.com/sitemap-baidu.xml
- Robots.txt: https://theiqtests.com/robots.txt