TOEFL (Test of English as a Foreign Language):
Test of English as a Foreign Language (TOEFL) is a compulsory English test conducted for every student from non-English speaking country looking for overseas education in English speaking countries. It is a test conducted for assessing the fundamental abilities in English and is accepted by over 6000 colleges and universities in 110 countries. The test is administered in 180 countries at more than 1275 test sites. A TOEFL score is valid for two years and then is deleted from the official database.
Read more:
https://www.ets.org/toefl