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7. What is the difference between CDN and DNS? What are the approaches for bypassing CDN?

CDN (Content Delivery Network)​

Its primary function is to enable users to access web resources from a geographically proximate node, improving response speed and reducing network congestion.

DNS (Domain Name System)​

Its primary function is to translate domain names into IP addresses.

CDN Bypass Approaches​

  • Subdomain enumeration
  • Internal email headers
  • Dark search engine queries
  • Pinging from foreign locations
  • Certificate and DNS records analysis
  • App traffic interception
  • Misconfiguration exposure
  • Scanning the entire IP range
  • DoS attacks