Author: qc_admin

what is minification? Learn how removing whitespace, comments, and long names shrinks HTML, CSS, and JS to speed up load times without changing behavior.

what is a favicon? Learn what site icons are, the formats and sizes to use, how to add them with link tags, and how browsers pick and cache them.

what is lazy loading? Learn how deferring images, iframes, and code until needed cuts initial load time, saves bandwidth, and improves Core Web Vitals.

what is dns? A developer guide to the domain name system: how resolution works, record types like A, CNAME, MX and TXT, TTL, caching, and common pitfalls.

what is a cdn? Learn how a content delivery network caches assets on edge servers worldwide to cut latency, offload origins, and improve reliability.

what is a websocket? A clear developer guide to the full-duplex protocol powering chat, live dashboards, and real-time apps over one TCP connection.

What is local storage? A browser API that stores string key-value data on the device with no expiry, scoped per origin. Learn usage, limits, and security.

What is a cookie? A piece of data a server stores in the browser and sends back on each request. Learn attributes, security flags, and best practices.