HTML-CSS Certification
Validate semantic HTML5, modern CSS3, responsive design, Flexbox, CSS Grid, accessibility fundamentals, and web layout skills for front-end and web design roles.
Build a clearer path toward full-stack development with COITB certification programs that validate real-world skills across front-end, back-end, database, and modern application technologies. Designed for aspiring IT professionals, bootcamp graduates, self-taught developers, and career changers, these industry-recognized credentials help demonstrate capability, strengthen résumés, and support progress toward high-demand digital careers.

COITB validates the core technologies full-stack developers use to build, connect, and scale modern applications.
Validate semantic HTML5, modern CSS3, responsive design, Flexbox, CSS Grid, accessibility fundamentals, and web layout skills for front-end and web design roles.
Demonstrate modern JavaScript capability, including ES6+, DOM manipulation, async/await, Fetch API, functional programming concepts, event handling, and REST API integration.
Validate React application development skills, including JSX, component architecture, Hooks, state management, routing, controlled forms, conditional rendering, and API integration.
Show proficiency in Python 3 programming, object-oriented development, file I/O, exception handling, standard library usage, modules, packages, and production-ready Python style.
Validate relational database skills, including schema design, SQL querying, joins, indexes, stored procedures, transactions, constraints, and MySQL backend engineering fundamentals.
Strengthen modern application credentials with GPT implementation, prompt engineering, API integration patterns, AI application architecture, responsible AI practices, and output evaluation.
Full-stack development requires more than one skill signal. COITB helps candidates validate a complete technology foundation across web layout, JavaScript, React interfaces, Python programming, MySQL databases, and emerging GPT application skills. Each credential supports résumé strength, employer verification, and career mobility without requiring candidates to enroll in a COITB course or bootcamp.

COITB helps candidates turn practical technical ability into employer-verifiable credentials.
COITB validates real-world capability in technologies employers use across modern software teams.
Certification programs are aligned to ISO/IEC 17024 standards for personnel credentialing.
Remote online testing supports flexible scheduling for candidates across the U.S. and beyond.
Credentials map clearly to front-end, back-end, AI, and full-stack career pathways.
Credentialing support for today’s growing IT workforce.
COITB is a non-profit credentialing body focused on industry-recognized IT certifications for the digital age. Its mission is to validate real-world skills, elevate professional standards, and support the growth of a strong, future-ready IT workforce. From its Oklahoma City headquarters, COITB serves candidates across the United States and beyond through flexible online remote-proctored exams and authorized in-person test centers. The organization supports aspiring IT professionals, career changers, software developers, web designers, back-end developers, AI practitioners, and technical sales specialists by providing credentials aligned with practical technologies used in modern work.
A full-stack developer typically benefits from credentials that validate both client-side and server-side capability. A strong COITB pathway can include HTML-CSS Web Designer, JavaScript Professional Developer, ReactJS Framework Developer, MySQL Backend Developer, and Professional Python Developer. Depending on your target role, Certified GPT Professional may also strengthen your profile for AI-enabled application development.
Get guidance on exams, registration, and credential pathways.
Aligned to global personnel certification standards.
Industry-recognized validation for modern IT skills.
Digital badge issued after successful exam completion.
Send your certification questions, target role, or credential pathway needs, and COITB support will help you understand registration, exam delivery, practice assessment options, and next steps.
You can also send us a quick email at support@coitb.org.
You can also send us a quick email at support@coitb.org.