--- title: Guides description: Learn how to implement common patterns and real-world use cases using Next.js url: "https://nextjs.org/docs/15/app/guides" docs_index: /docs/15/llms.txt lastUpdated: 2025-06-11 --- > For an index of all documentation, see [/docs/15/llms.txt](/docs/15/llms.txt). - [Analytics](/docs/15/app/guides/analytics): Measure and track page performance using Next.js Speed Insights - [Authentication](/docs/15/app/guides/authentication): Learn how to implement authentication in your Next.js application. - [Backend for Frontend](/docs/15/app/guides/backend-for-frontend): Learn how to use Next.js as a backend framework - [Caching](/docs/15/app/guides/caching): An overview of caching mechanisms in Next.js. - [CI Build Caching](/docs/15/app/guides/ci-build-caching): Learn how to configure CI to cache Next.js builds - [Content Security Policy](/docs/15/app/guides/content-security-policy): Learn how to set a Content Security Policy (CSP) for your Next.js application. - [CSS-in-JS](/docs/15/app/guides/css-in-js): Use CSS-in-JS libraries with Next.js - [Custom Server](/docs/15/app/guides/custom-server): Start a Next.js app programmatically using a custom server. - [Data Security](/docs/15/app/guides/data-security): Learn the built-in data security features in Next.js and learn best practices for protecting your application's data. - [Debugging](/docs/15/app/guides/debugging): Learn how to debug your Next.js application with VS Code, Chrome DevTools, or Firefox DevTools. - [Draft Mode](/docs/15/app/guides/draft-mode): Next.js has draft mode to toggle between static and dynamic pages. You can learn how it works with App Router here. - [Environment Variables](/docs/15/app/guides/environment-variables): Learn to add and access environment variables in your Next.js application. - [Forms](/docs/15/app/guides/forms): Learn how to create forms in Next.js with React Server Actions. - [ISR](/docs/15/app/guides/incremental-static-regeneration): Learn how to create or update static pages at runtime with Incremental Static Regeneration. - [Instrumentation](/docs/15/app/guides/instrumentation): Learn how to use instrumentation to run code at server startup in your Next.js app - [Internationalization](/docs/15/app/guides/internationalization): Add support for multiple languages with internationalized routing and localized content. - [JSON-LD](/docs/15/app/guides/json-ld): Learn how to add JSON-LD to your Next.js application to describe your content to search engines and AI. - [Lazy Loading](/docs/15/app/guides/lazy-loading): Lazy load imported libraries and React Components to improve your application's loading performance. - [Development Environment](/docs/15/app/guides/local-development): Learn how to optimize your local development environment with Next.js. - [MDX](/docs/15/app/guides/mdx): Learn how to configure MDX and use it in your Next.js apps. - [Memory Usage](/docs/15/app/guides/memory-usage): Optimize memory used by your application in development and production. - [Migrating](/docs/15/app/guides/migrating): Learn how to migrate from popular frameworks to Next.js - [Multi-tenant](/docs/15/app/guides/multi-tenant): Learn how to build multi-tenant apps with the App Router. - [Multi-zones](/docs/15/app/guides/multi-zones): Learn how to build micro-frontends using Next.js Multi-Zones to deploy multiple Next.js apps under a single domain. - [OpenTelemetry](/docs/15/app/guides/open-telemetry): Learn how to instrument your Next.js app with OpenTelemetry. - [Package Bundling](/docs/15/app/guides/package-bundling): Learn how to optimize your application's server and client bundles. - [Prefetching](/docs/15/app/guides/prefetching): Learn how to configure prefetching in Next.js - [Production](/docs/15/app/guides/production-checklist): Recommendations to ensure the best performance and user experience before taking your Next.js application to production. - [PWAs](/docs/15/app/guides/progressive-web-apps): Learn how to build a Progressive Web Application (PWA) with Next.js. - [Redirecting](/docs/15/app/guides/redirecting): Learn the different ways to handle redirects in Next.js. - [Sass](/docs/15/app/guides/sass): Style your Next.js application using Sass. - [Scripts](/docs/15/app/guides/scripts): Optimize 3rd party scripts with the built-in Script component. - [Self-Hosting](/docs/15/app/guides/self-hosting): Learn how to self-host your Next.js application on a Node.js server, Docker image, or static HTML files (static exports). - [SPAs](/docs/15/app/guides/single-page-applications): Next.js fully supports building Single-Page Applications (SPAs). - [Static Exports](/docs/15/app/guides/static-exports): Next.js enables starting as a static site or Single-Page Application (SPA), then later optionally upgrading to use features that require a server. - [Tailwind CSS v3](/docs/15/app/guides/tailwind-v3-css): Style your Next.js Application using Tailwind CSS v3 for broader browser support. - [Testing](/docs/15/app/guides/testing): Learn how to set up Next.js with four commonly used testing tools — Cypress, Playwright, Vitest, and Jest. - [Third Party Libraries](/docs/15/app/guides/third-party-libraries): Optimize the performance of third-party libraries in your application with the \`@next/third-parties\` package. - [Upgrading](/docs/15/app/guides/upgrading): Learn how to upgrade to the latest versions of Next.js. - [Videos](/docs/15/app/guides/videos): Recommendations and best practices for optimizing videos in your Next.js application. --- For a semantic overview of all documentation, see [/sitemap.md](/sitemap.md) For an index of all available documentation, see [/docs/15/llms.txt](/docs/15/llms.txt)