CST1 Spanish Certifications

Official Spanish Certification from the Source.

The CST1 (Certified Spanish Test One) suite represents the definitive validation of Spanish language proficiency for the global workforce. Developed and issued by an Certtia an Official Educational Institution in Mexico accredited by the Department of Education, our exams provide the authenticity and authority that employers respect.

Why Certify with CST1?

  • Monetize your Skills: Designed to meet the requirements for Bilingual Pay Bonuses in the US market (Medical, Customer Service, Call Centers,  Legal).

  • Global Authority: Strictly aligned with the Association of Language Testers in Europe (ALTE) standards and the Common European Framework of Reference (CEFR)and validated by the Mexican Department of Education.

  • Native Validation: Don't settle for a test created in a non-Spanish speaking country. Get certified by the native authority.

How it works:

  1. Select your Exam: Choose between the full 4 Skills assessment (recommended for highest employability) or only the Reading Comprehension test.

  2. Take it Online: Secure, AI-proctored exams available 24/7 from your computer.

  3. Get Verified: Receive a digital certificate validated from the Department of Education of Mexico with a unique QR verification code in 24 hours.