Spanish Link

A good tool for preparing Spanish is at this site. Also they write:

Upon successful completion of intermediate or advanced courses a Diploma Básico is awarded. Successful completion of the superior level course awards you the internationally recognized "Diploma Superior de Español como Lengua Extranjera" (D.E.L.E.: Diploma of Spanish as a Foreign Language).

http://www.alhambra-instituto.org/courses-dele-exam.htm