Origin fetch is the most core and most misunderstood CDN concept. This guide uses everyday analogies to explain what origin fetch is, the difference between the origin address and origin Host, how to choose an origin protocol, and what happens on cache misses, timeouts, and failures.
How do you configure HTTPS certificates after putting your site on a CDN? This guide explains edge vs origin certificates, the three origin protocols, free vs custom certificates, and five common pitfalls.
Origin Shield adds an intermediate cache layer between the edge and your origin, consolidating origin fetches, improving cache hit ratio, and protecting the origin. This article explains multi-level cache architecture with CloudFront, Cloudflare and Fastly practices.
APNIC chief scientist summarizes the most relevant DNS topics at IETF 126, including recursive resolver query behavior, post-quantum DNSSEC experiments, Optimistic DNS, and local root deployment.
How to accelerate overseas user access for ICP-licensed Chinese websites? This article covers the best CDN solutions including Cloudflare, AWS, and GCP.
CDN SSL/TLS configuration requires balancing security and performance. This guide covers certificate management, protocol versions, cipher suites, and best practices.
Cache hit ratio is the core metric for CDN efficiency. This article shares practical tips for improving CDN cache hit ratios through cache rules, file versioning, and prefetch strategies.
P2P CDN uses peer-to-peer transmission between user devices to reduce server load. This article covers P2P CDN technical principles, use cases, and commercial solutions.
Multi-CDN architecture avoids single points of failure and optimizes global access speed. This article covers multi-CDN load balancing principles, DNS strategies, and implementation approaches.