Resumen
Massive Open Online Courses are emerged by the use of developing technologies for distance learning. With the aid of these systems, millions of people have an opportunity to attend academic lectures and obtain certificate. In recent years, most of the well known universities have supported these type of studies. Thus, number of open courses have been increased. In this study, specifically in context of Turkey, three most commonly used MOOC platforms evaluated the level of accessibility of localized MOOCs using automatic accessibility checking and provide some recommendations to improve its accessibility and usability.