Duolingo English Test (DET) is an online English proficiency test that measures a person's ability to communicate in English. The test is designed to assess a person's proficiency in the areas of reading, writing, speaking, and listening.

The Duolingo English Test is entirely computer-based and can be taken from any location with an internet connection. The test is scored on a scale of 10-160, with scores above 120 considered to be proficient in English. The test is adaptive, which means that the difficulty level of the questions adjusts to the test-takers ability level.

One of the main advantages of the Duolingo English Test is its convenience and accessibility. Test- takers can take the test at any time, from anywhere in the world, and receive their results within 48 hours. The test is affordable and typically costs less than other English proficiency tests such as TOEFL or IELTS

The Duolingo English Test is recognized by many universities, colleges, and other organizations as an alternative to other English proficiency tests