Web Vitals
A standard set of metrics defined by Google to measure the 'health' of a web page's user experience, specifically focusing on loading speed, interactivity, and visual stability.
Edge Computing
A distributed computing paradigm that brings data processing as close to the end-user (the 'edge') as possible to minimize latency and improve performance.
Hydration
The process of React attaching event listeners to static HTML rendered on the server to make it fully interactive on the client side.
Serverless Architecture
An execution model where the cloud provider manages the allocation of machine resources, allowing developers to focus solely on building functions and business logic.
CSS Houdini
A set of low-level APIs that give developers direct access to the browser's rendering engine, allowing for custom painting, layout, and animation logic.
Brotli Compression
A modern lossless data compression algorithm developed by Google that is significantly more efficient than GZIP for static assets like CSS and JS.
SSR vs SSG
Server-Side Rendering (SSR) generates HTML for each request, while Static Site Generation (SSG) pre-renders all pages at build time. Next.js 15+ allows for both.
Cross-Site Scripting (XSS)
A security vulnerability where attackers inject malicious scripts into trusted websites, often countered by rigorous data sanitization and Content Security Policies (CSP).
React Server Components (RSC)
A new paradigm in React that allows components to run exclusively on the server, reducing the amount of JavaScript sent to the client and improving performance.
Content Delivery Network (CDN)
A geographically distributed group of servers which work together to provide fast delivery of Internet content via local edge caches.
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