http://www.englishprofile.org
From the website: “English Profile is a long term, collaborative programme of interdisciplinary research, designed to enhance the learning, teaching and assessment of English worldwide. In collaboration with academics, teachers and education authorities worldwide, English Profile is exploring the way learners of English progress through the levels of the Common European Framework of Reference for Languages (CEFR).”
Disclosure: The post author works for Cambridge University Press at the time of posting. The opinions expressed here are my own and are not necessarily those of my employer. This blog is not sponsored nor endorsed by my employer.