Buy registered TOEFL certificate without exams online. TOEFL is the most common academic English test worldwide but in some countries, such as the UK, universities prefer people to have a good IELTS score because they think it is a more accurate test of English level. TOEFL or the Test of English as a Foreign Language measures the capability of non-native English speaks to understand and use North American English as it is heard, written and spoken in university and college.