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Is a CDN Secure?

Updated on 20 November, 2025

A CDN enhances security by serving as a protective barrier between users and origin servers, featuring built-in security measures like SSL/TLS encryption.


Yes. A CDN improves security by acting as a protective layer between users and the origin server, and by offering several built-in security features:

  • SSL/TLS Encryption: Ensures secure transmission of data between users, the CDN, and the origin server.
  • Web Application Firewall (WAF): Blocks malicious requests targeting application vulnerabilities.
  • Bot Mitigation: Identifies and filters harmful automated traffic without affecting legitimate users.
  • Secure Token Authentication: Uses signed URLs or tokens to restrict access to protected content.
  • IP Access Controls: Allows administrators to define who can access specific resources.
  • Origin Shielding: Hides the origin server behind the CDN, reducing its exposure to direct attacks.