What is an SSL

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About Course

Sucuri Security Academy

Understanding SSL: Secure Connections

SSL (Secure Sockets Layer), implemented today through TLS (Transport Layer Security), is the foundation of secure web communication.

In this course, you’ll learn what SSL/TLS is, how it works, and why secure connections are essential for every modern website. We’ll explain how HTTPS encrypts data in transit, how browsers verify certificates, and how SSL impacts user trust, search engine visibility, and regulatory compliance.

Course Objectives

✓ Data Encryption

Learn how HTTPS encrypts data in transit to protect sensitive information from unauthorized access.

✓ Browser Verification

Understand how web browsers verify certificates and the mechanisms behind establishing secure handshakes.

✓ Trust & Compliance

Discover how SSL directly impacts user trust, search engine visibility, and standard regulatory compliance.

✓ Practical Maintenance

Explore the different types of SSL certificates and the practical steps required to install, renew, and maintain them.

By the end of this course, you’ll have a clear understanding of how SSL/TLS protects websites and how to implement it correctly to avoid security warnings, downtime, and trust issues.

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What Will You Learn?

  • Understand what SSL/TLS is and how encryption works
  • Differentiate between HTTP and HTTPS
  • Explain how the SSL handshake establishes secure communication
  • Identify the differences between DV, OV, EV, Wildcard, and SAN certificates
  • Understand how SSL impacts SEO and regulatory compliance

Course Content

Module 1: SSL Basics: Understanding Secure Connections
To explain what SSL/TLS is, its fundamental role in encryption, and why it's a foundational element for secure web browsing and building trust.

Module 2: SSL Management: Choosing, Installing & Maintaining Your Certificate
To guide users through the practical process of choosing the right SSL/TLS certificate, and implementing/maintaining it without service disruption.

Module 3 — SSL in the Real World: Risks, Limitations, and Best Practices
SSL/TLS is essential for encrypting data in transit and establishing trust through HTTPS — but it does not secure a website by itself. This module explains what SSL/TLS does and does not protect against, highlights common misconceptions, and outlines practical best practices for maintaining secure SSL deployments over time. Learners will understand how SSL fits into a broader security strategy and how to reduce risk through correct configuration, monitoring, and maintenance.

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