
Most read ‘Hypertext’ articles
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Open links force-opened in Microsoft Edge in your default browser

New Save-Data HTTP header tells websites to reduce their data usage

Network speed testing apps on Windows 10: Ookla or Microsoft?
Latest ‘Hypertext’ articles
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The web runs on a really powerful protocol, which is often misunderstood and underused. Here I explore the Hyper Text Transfer Protocol to help you make better websites.

Permanent redirects are supposed to be permanent
Every web developer should already be familiar with the ‘301 Moved Permanently’ redirect and maybe even the newer ‘308 Permanent Redirect’ status responses in HTTP. Did…

Recovering from HTTP clients that include URL #fragments in their requests
The web is an open place where all sorts of broken client implementations can roam free. In this article, I’ll walk you through how you can…

Which CDN providers support stale-while-revalidate?
Last week, I talked about the benefits of and how you can test for stale-while-revalidate support (RFC 5861). This week, I’ve done the testing for you.

How to test for HTTP stale-while-revalidate support?
stale-while-revalidate is a useful extension to the HTTP Cache-Control response header. The header instructs intermediary caches that they can fulfill requests by returning resources that have…

Save-Data aware HTTP/2 server push
Server initiated push is a new feature in HTTP/2 that can greatly improve page load performance by pushing critical resources to the client without requiring the…

Accelerate redirects with HTTP/2 server push
You can achieve low-latency responses to redirects with HTTP/2 by pushing the resource at the redirected location along with the response that informs the web browser…

How caching affects internet connectivity tests
Windows 8.1 and older did a better job of detecting “captive portals” (Wi-Fi networks that require logins) and determining whether the state of a computer’s internet…

Embed a JavaScript CDN in your web browser with Decentraleyes
Decentraleyes is a browser extension for Mozilla Firefox and Google Chrome that acts as a content delivery network (CDN) for popular JavaScript libraries right from within…

Do private bug trackers leak data on security vulnerabilities and other known issues?
Private bug trackers disclose data about bug reports to any website that publishes information about security vulnerabilities or other issues that affect the organization.

New Save-Data HTTP header tells websites to reduce their data usage
Some users are okay with a slightly degraded user experience and lower image quality in exchange for lower data usage and costs savings. There haven’t been…