HTTP Cache Validation with ETag and Last-Modified
ETag and Last-Modified drive conditional HTTP requests and 304 responses. See how precedence, weak validators, CDNs, and cache policy affect revalidation.
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Hosting
I often describe hosting as hiring a shop window on the internet, but the engineering decisions behind it are less simple. This category looks at the deployment platforms and operational behaviour that determine whether a site is available, current, and straightforward to support.
HTTP Cache Validation with ETag and Last-Modified. HTTP Cache Validation with
What is a Distributed Denial of Service (DDoS) Attack? What is a Distributed Denial of Service (DDoS) Attack?
Learn how DDoS attacks overwhelm services with distributed botnet traffic, why they are hard to block and which mitigations can reduce the risk.
Why is Time to First Byte (TTFB) Important? Why is Time to First Byte (TTFB) Important?
Time To First Byte (TTFB) is a measurement of the time it takes for a server to respond to a request: how quickly your visitor can start to load your page.
A Beginner's Guide to Web Hosting. A Beginner's Guide to Web Hosting
A beginner's guide to how web hosting works, the differences between shared, VPS, dedicated and cloud hosting, and how to choose a suitable provider.
301 vs. 307 Redirects. 301vs.307RedirectsCompare 301 and 307 redirects clearly, including permanence, browser behaviour, SEO impact, cache handling, temporary moves, and when each status code fits.