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Max asks:March 6, 2023

Does ever CDN server goes down?

I'm curious about the reliability of CDN servers and whether they ever experience downtime.

Thom Krupa

While CDN servers are generally designed to provide high availability and redundancy, it's possible for individual servers to experience downtime due to various reasons, such as hardware failures, network issues, or even power outages. However, CDNs are built with multiple layers of redundancy to mitigate the impact of these events:

  1. Redundancy: CDNs have numerous edge servers distributed worldwide. If one server goes down, the network can continue to operate using other available servers.
  2. Load balancing: CDNs distribute traffic among multiple edge servers, reducing the impact of any single server failure on overall performance.
  3. Automatic failover: In the event of a server failure, CDNs can automatically reroute traffic to other functioning edge servers to maintain website availability.
  4. Monitoring and maintenance: CDN providers monitor their networks and perform regular maintenance to minimize the risk of server downtime.

While it's possible for individual CDN servers to experience downtime, the robust architecture and redundancy of CDNs ensure that the overall network remains highly available, minimizing the impact of server failures on website performance and availability.

Answered by

Thom Krupa

Co-founder of Bejamas. Focuses on helping people create faster and better websites and apps. Never bet against the Web.

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