Duolingo · Online English Proficiency Test

Duolingo English Test

DET

The Duolingo English Test is a fast, fully online English-proficiency exam now accepted by 5,000+ universities and programs worldwide. For most international applicants it is the single language score that unlocks an admission offer and, with it, a student visa — so a result that falls even five points short of your program's minimum can stall an entire application cycle. This page breaks down exactly what the DET tests, how its AI proctoring works, and how to hit your target score the first time.

~60 min
Adaptive + Interview
Scored 10–160
100% Online

Pay Only After You Pass

No upfront fee — you settle only after your verified passing result. We advertise guaranteed results — 100% pass guaranteed or money back.

Exam Spec Sheet

Provider Duolingo
Format Online · computer-adaptive
Duration About 60 minutes
Scoring 10–160 (no fixed pass mark)
Subscores Literacy · Comprehension · Conversation · Production
Fee $70 USD per test
Proctoring AI monitoring + human review
Results Certified within ~48 hours
Validity 2 years from certification
Language English
See DET Help Options

EXAM FORMAT

How the Duolingo English Test is built — at a glance

~5 min

Onboarding & setup

ID verification, a room and desk scan, a camera and microphone check, and the rules briefing before the graded section unlocks.

~45 min

Adaptive graded section

The scored core: a mix of reading, writing, listening, and speaking task types that adapt in difficulty as you answer. This is what produces your 10–160 score.

~10 min

Video interview & writing

An open-ended speaking response and a writing sample. These are not scored but are sent unedited to every institution you choose.

Question types you'll meet

The adaptive section rotates through tasks such as Read and Complete, Read and Select (real vs. fake words), Listen and Type (dictation), Read Aloud, Write About the Photo, Interactive Reading, and Speak About the Photo. Each task is strictly timed and you cannot return to a previous question once you move on.

How adaptivity & scoring work

The test is computer-adaptive: it raises or lowers question difficulty based on how you answer, so it can measure your level in fewer items. Your performance is reported as a single overall score from 10 to 160 in 5-point steps, plus four subscores. There is no universal pass mark — each university publishes its own minimum overall and, sometimes, minimum subscores.

WHAT'S TESTED

Four integrated skill subscores roll up into your overall 10–160 result

1

Literacy

Reading + Writing

Measures your ability to read and write English accurately — vocabulary range, grammar control, and producing clear written responses under time pressure.

2

Comprehension

Reading + Listening

How well you understand written and spoken English — decoding passages, following dictated audio, and grasping meaning across both channels.

3

Conversation

Listening + Speaking

Your ability to understand and respond in real time — listening to prompts and speaking fluently, naturally, and on-topic.

4

Production

Writing + Speaking

How effectively you generate language yourself — organizing ideas, using accurate grammar and vocabulary, and producing coherent written and spoken output.

The four subscores are integrated — every task feeds more than one skill, so the DET measures combined competencies rather than four isolated sections. A lopsided profile (for example, strong Comprehension but weak Production) can pull down your overall and trip a program's minimum-subscore rule, so balance across all four is what reliably clears admissions thresholds.

DELIVERY & PROCTORING

Taken entirely online — and watched closely by AI, then by humans

100% online, on your own computer

There are no test centers and no scheduled slots — you take the DET on demand from a quiet, private room using your own laptop or desktop with a webcam and microphone. As of 2026, a second camera (typically your phone) is also required to give the proctors a side view of your workspace. The fee is $70 USD per test.

AI proctoring + human review

The DET is not live-proctored — instead, your entire session is recorded and monitored by AI that flags eye movement, extra voices, and other anomalies. After you finish, trained Duolingo proctors review the recording before your result is certified. A flagged session can be delayed or have its result withheld, so a clean, rule-compliant sitting matters.

ID & identity check

A valid, unexpired government photo ID with a name matching your account. You photograph it and your face at the start so the recording can be matched.

Environment scan

A clear desk, no notes or headphones, no second screen, and a webcam scan of the room. You must be completely alone for the full hour.

During the test

Stay centered and in frame, keep your eyes on the screen, don't read aloud except when a task requires it, and never leave your seat — there are no scheduled breaks.

WHO SHOULD TAKE THIS

The DET is built for applicants who need a fast English score

  • International students applying to undergraduate or graduate programs abroad
  • Applicants on tight deadlines who can't wait weeks for a test slot or results
  • Candidates with no test center nearby who need a fully remote option
  • Budget-conscious applicants who want a lower-cost alternative to IELTS or TOEFL
  • Scholarship and exchange-program applicants who need proof of English quickly

PREREQUISITES & DIFFICULTY

No formal requirements — but the format is unforgiving

  • No formal prerequisites — open to anyone needing an English score
  • A computer, webcam, and a second camera (phone) with stable internet
  • A private, quiet room where you can be completely alone for an hour
  • Confirm your target university accepts the DET and its minimum score

Difficulty: The DET is short, but speed is its trap. Tasks are individually timed, you can't go back, and a single weak task type — Listen and Type dictation or Speak About the Photo — can quietly drag a subscore below a program's threshold. The proctoring rules are also strict and easy to break by accident. That mix of pace and pressure is exactly the pinch point our help is designed to remove.

HOW EXAM ASSIST HELPS YOU PASS THE DET

The Duolingo English Test is a fast, high-pressure exam sitting between you and an admission offer. Exam Assist pairs you with a vetted DET specialist and works on a pay-after-you-pass model — so the risk sits with us, not you. No upfront fee, guaranteed results: just an honest plan and a verified result that meets your program's requirement before you settle.

1

Share your exam details

Tell us your target overall score (and any minimum subscores), your deadline, and which universities you're sending results to. Takes a couple of minutes over WhatsApp, Telegram, or Discord.

2

Get an honest feasibility answer

We review your target and timeline and tell you plainly whether it's realistic — before any money is discussed. If it isn't a fit, we say so.

3

The sitting is handled

Exam Assist handles the sitting end to end. You're matched with a DET specialist who maps the work around the adaptive task types, the four subscores, and the AI-proctored environment — discreetly and confidentially.

4

Settle after the verified result

You only pay once your certified score is confirmed and meets the requirement you gave us. No verified result, nothing owed.

Ready to lock in your DET score?

See the full pay-after-you-pass Duolingo English Test service, pricing model, and how matching works.

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FREQUENTLY ASKED

Straight answers about the Duolingo English Test

What is a good score on the Duolingo English Test? +
The DET is scored from 10 to 160 in 5-point increments, with no fixed pass mark — each university sets its own minimum. As a rough guide, 95–100 maps to a competitive IELTS 6.5 and 110–120 to roughly IELTS 7.0–7.5. Many undergraduate programs ask for 105–120 and selective graduate programs for 120+. Because the test also reports four subscores (Literacy, Comprehension, Conversation, Production), a balanced profile matters as much as the overall number.
How long is the Duolingo English Test and what does it include? +
The whole session runs about 60 minutes: roughly 5 minutes of setup and onboarding, a 45-minute computer-adaptive graded section, and a final 10-minute video interview plus writing sample. The adaptive section mixes question types such as Read and Complete, Read and Select, Listen and Type, Read Aloud, and Write About the Photo. The video interview and writing sample are sent unscored to the institutions you choose.
Is the Duolingo English Test proctored? +
Yes, but there is no live human watching you in real time. You take the DET from home on your own computer, and the session is recorded and monitored by AI for the entire test. Every recording is then reviewed by Duolingo proctors before your result is certified. You complete an ID check, a 360-degree room and desk scan, and must stay alone, in frame, and on-camera throughout. As of 2026 a two-camera setup (computer webcam plus a phone) is required.
How fast do I get my results, and how long are they valid? +
Certified results are typically released within 48 hours of completing the test, and you can send them to an unlimited number of institutions for free. A certified DET score is valid for 2 years from the date it is certified and published — not from the day you sat the test.
How much does the DET cost and how often can I take it? +
A single Duolingo English Test costs $70 USD, with a discounted two-test bundle that works out to roughly $59 USD per test. You can take the test up to three times in a 30-day window, and certified results from each attempt are sent to your selected institutions.
Do I pay Exam Assist before or after I see my DET score? +
You settle only after your verified score is confirmed and meets the requirement you told us about. There is no upfront fee — you share your exam details, receive an honest feasibility answer, and decide before any money changes hands. We advertise a guaranteed pass with money back if you do not pass; we offer a transparent, results-first arrangement.
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