- Origin offload: keep PHP, Node and storage off the public pathOffload is the share of work the origin no longer does. It is why CDN spend can be cheaper than another app node: CSS, images and anonymous HTML never needed PHP or Node in the first place.
- Cache hit ratio explained, and why 85% is a network averageHit ratio is the share of requests the edge answered without origin. Aptranet publishes an 85% average across the network. Your site will match that only if the bytes are actually reusable and the keys are not poisoned.
- Why your website is fast at home and slow everywhere elseIf the office is in the same city as the origin, every local test is a lie about Tokyo, Sao Paulo and Cape Town. Those users are not slow. They are far.
- HTTP/2 vs HTTP/3: what actually changes on a CDNHTTP/2 fixed the one-file-per-connection mess. HTTP/3 fixes some of what TCP still costs on lossy paths. You want both at the edge, and you want fallback when a hotel network blocks UDP.
- Brotli vs Gzip: what a CDN should compressText should not travel uncompressed from a global edge. Brotli usually wins on HTML, JS, CSS and JSON. Gzip remains the fallback. Images, video and zips should not be recompressed.
- How to improve page speed with cache, images and HTTP/3Page speed advice often starts at minification. For anyone not in the origin region, it should start at geography. Cache the document, shrink the LCP image, self-host fonts, then talk about JavaScript.