Web Development Intermediate

What is SSR (Server-Side Rendering)?

A technique where web pages are rendered on the server and sent as complete HTML to the browser, improving SEO and initial load time.

SSR generates full HTML on the server for each request, unlike SPAs that render in the browser. This enables search engines to crawl content easily and users to see content immediately without waiting for JavaScript to load.

Frameworks like Next.js (React), Nuxt.js (Vue), and SvelteKit support SSR. The server renders the page, sends HTML, then "hydrates" it with JavaScript for interactivity. Trade-offs include higher server load and more complex deployment.

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HTML elements in the page head that provide metadata about the document for browsers, search engines, and social media platforms.

HTTP headers that control cross-origin resource sharing between different domains, specifying allowed origins, methods, and headers.

Progressive Web App (PWA)

A web application that uses modern web capabilities to deliver app-like experiences with offline support and push notifications.

A property where performing an operation multiple times produces the same result as performing it once.

An XML file that lists all important URLs on a website, helping search engines discover and crawl content efficiently.

The second major version of HTTP that improves performance through multiplexing, header compression, and server push.

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