Expert-Backed Prep Master secure software development from start to finish. Our CSSLP prep is based on the latest ISC2 domains and built by industry experts to help you study smarter and pass with confidence.

495 Domain-Aligned Questions Practice across all 8 CSSLP domains—from Software Concepts and Architecture to Supply Chain and Deployment. Every question mirrors real exam structure.

Understand the Why Each question comes with a detailed explanation to help you grasp key concepts. Learn the rationale behind correct answers and strengthen your applied understanding.

Train Like It’s the Real Exam Use full-length mock exams, timed drills, and targeted quizzes to simulate the CSSLP testing experience. Build confidence and exam-day readiness.

Track Progress by Domain Get detailed analytics on all 8 CSSLP domains. Focus your study on weaker areas and improve faster with smart performance tracking.

Fits Your Schedule Study anytime, anywhere—on your terms. Choose daily questions, custom quizzes, or focused sessions and make progress in minutes.

Advance Your Secure Dev Career Earning the CSSLP proves your ability to build secure software across the lifecycle. Use Prepsly to prepare efficiently and earn your credential with confidence.