You've likely seen "HTTPS" in your browser's address bar, but do you know what it means?
It's easy to overlook, but URLs typically begin with either HTTPS (https://) or HTTP (http://)
If you’re interested in learning about internet security, consider this to be your first lesson.
What Is HTTP?
HTTP (Hypertext Transfer Protocol) is a set of rules for transferring files like text, images, and videos on the web.
The protocol operates in the background when you use a web browser. It is built on TCP/IP protocols, which are the foundation of the Internet.
What Is HTTPS?
HTTPS (Hypertext Transfer Protocol Secure) secures online communication with encryption protocols.
It was previously called Secure Sockets Layer (SSL) and is now known as Transport Layer Security (TLS).
HTTPS adds integrity, authentication, and encryption to the HTTP protocol.
What Is the Difference Between HTTPS and HTTP?
Feature | HTTP | HTTPS |
|---|---|---|
Security Certificate | Lacks SSL certificate. | Includes SSL certificate for enhanced security. |
Data Vulnerability | Data like credit card details are vulnerable. | Protects submitted data from interception. |
Data Encryption | No encryption between browser and server. | Encrypts data sent between browser and server. |
Server Authentication | Does not verify the server. | Verifies the server and prevents data tampering |
Main Benefits | Basic web communication | Offers data protection, encryption, and server authentication. |
Beyond the Basics: Advanced Features of HTTPS
HTTPS is a multifaceted tool offering advanced security and functionality features for web communications, including:
Perfect Forward Secrecy (PFS): Ensures session-specific encryption keys, protecting past communications even if future keys are compromised.
HTTP Strict Transport Security (HSTS): Forces modern web browsers to use secure HTTPS connections, preventing downgrade attacks and cookie hijacking.
OCSP Stapling: Checks the revocation status of digital certificates efficiently, enhancing transaction speed and privacy.
Public Key Pinning: Defends against impersonation by specifying which cryptographic keys belong to the server.
Extended Validation Certificates: Provides higher trust levels by verifying the legal entity of the site owner, often indicated by a green company name in the browser's address bar.









