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Production ChecklistBefore taking your Next.js application to production, there are some optimizations and patterns you should consider implementing for the best user experience, performance, and security. This page provides best practices that you can use as a reference when building your application, before going to production, and after deployment - as well as the automatic Next.js optimization
We're laying the foundation for the future of Next.js with 12.2: Middleware (Stable): Dynamic routing for your entire application. On-Demand ISR (Stable): Update content without redeploying. Edge API Routes (Experimental): High performance API endpoints. Edge SSR (Experimental): Server-render your app, at the Edge. SWC Plugins (Experimental): Extend compilation with your own plugins. Improvements
This RFC (Request for Comment) outlines the biggest update to Next.js since it was introduced in 2016: Nested Layouts: Build complex applications with nested routes. Designed for Server Components: Optimized for subtree navigation. Improved Data Fetching: Fetch in layouts while avoiding waterfalls. Using React 18 Features: Streaming, Transitions, and Suspense. Client and Server Routing: Server-cen
Client-side FetchingClient-side data fetching is useful when your page doesn't require SEO indexing, when you don't need to pre-render your data, or when the content of your pages needs to update frequently. Unlike the server-side rendering APIs, you can use client-side data fetching at the component level. If done at the page level, the data is fetched at runtime, and the content of the page is u
<Link> Examples Hello World Active className on Link <Link> is a React component that extends the HTML <a> element to provide prefetching and client-side navigation between routes. It is the primary way to navigate between routes in Next.js. For an example, consider a pages directory with the following files: pages/index.js pages/about.js pages/blog/[slug].js We can have a link to each of these pa
Incremental Static Regeneration (ISR)Examples Next.js Commerce GitHub Reactions Demo Static Tweet Demo Next.js allows you to create or update static pages after you’ve built your site. Incremental Static Regeneration (ISR) enables you to use static-generation on a per-page basis, without needing to rebuild the entire site. With ISR, you can retain the benefits of static while scaling to millions o
We're excited to release one of our most requested features with Next.js 12.1: On-demand ISR (Beta): Revalidate pages using getStaticProps instantly. Expanded Support for SWC: styled-components, Relay, and more. next/jest Plugin: Zero-configuration Jest support using SWC. Faster Minification with SWC (RC): 7x faster minification than Terser. Self-Hosting Improvements: ~80% smaller Docker images. R
Font Optimization next/font will automatically optimize your fonts (including custom fonts) and remove external network requests for improved privacy and performance. 🎥 Watch: Learn more about using next/font → YouTube (6 minutes). next/font includes built-in automatic self-hosting for any font file. This means you can optimally load web fonts with zero layout shift, thanks to the underlying CSS
As we announced at Next.js Conf, Next.js 12 is our biggest release ever: Rust Compiler: ~3x faster Fast Refresh and ~5x faster builds Middleware (beta): Enabling full flexibility in Next.js with code over configuration React 18 Support: Native Next.js APIs are now supported, as well as Suspense <Image /> AVIF Support: Opt-in for 20% smaller images Bot-aware ISR Fallback: Optimized SEO for web craw
What is SEO?SEO stands for Search Engine Optimization. The goal of SEO is to create a strategy that will increase your rankings position in search engine results. The higher the ranking, the more organic traffic to your site, which ultimately leads to more business for you! What You’ll Learn in This CourseIn this course, we'll talk about: Search Systems, and search engine robots such as Googlebot.
module.exports = { pageExtensions: ['mdx', 'md', 'jsx', 'js', 'tsx', 'ts'], } Changing these values affects all Next.js pages, including the following: middleware.js instrumentation.js pages/_document.js pages/_app.js pages/api/ For example, if you reconfigure .ts page extensions to .page.ts, you would need to rename pages like middleware.page.ts, instrumentation.page.ts, _app.page.ts. Including n
Examples Next.js with Cypress Next.js with Playwright Next.js with Jest and React Testing Library Next.js with Vitest Learn how to set up Next.js with commonly used testing tools: Cypress, Playwright, and Jest with React Testing Library. Cypress Cypress is a test runner used for End-to-End (E2E) and Integration Testing. Quickstart You can use create-next-app with the with-cypress example to quickl
We're improving build performance across the entire stack with Next.js 11.1, featuring: Security Patch: An important update to prevent potential open redirects. ES Modules Support: Enable today with an experimental flag. Rust-based Tooling: SWC integration to replace JS tooling (Babel and Terser). Faster Data Fetching: 2x faster data fetching with HTTP keep-alive when pre-rendering. Faster Source
Cancel: Does not include any ESLint configuration. Only select this option if you plan on setting up your own custom ESLint configuration. If either of the two configuration options are selected, Next.js will automatically install eslint and eslint-config-next as dependencies in your application and create an .eslintrc.json file in the root of your project that includes your selected configuration
As we announced at Next.js Conf, our mission to create the best developer experience continues with Next.js 11, featuring: Conformance: A system that provides carefully crafted solutions to support optimal UX. Improved Performance: Further optimizations to improve cold startup time so you can start coding faster. next/script: Automatically prioritize loading of third-party scripts to improve perfo
We are excited to introduce Next.js 10.2, featuring: Faster Builds: Up to ~60% faster subsequent builds with caching. Faster Refresh: 100ms to 200ms faster refresh. Faster Startup: Up to ~24% faster next dev. Improved Accessibility: Route changes are now announced by screen readers. More Flexible Redirects and Rewrites: Match any header, cookie, or query string. Automatic Webfont Optimization: Imp
Why This Message Occurred Next.js has adopted webpack 5 as the default for compilation. We've spent a lot of effort into ensuring the transition from webpack 4 to 5 will be as smooth as possible. Your application currently has webpack 5 disabled using the webpack5: false flag which has been removed in Next.js 12: module.exports = { // Webpack 5 is enabled by default // You can still use webpack 4
We are excited to introduce Next.js 10.1, featuring: 3x Faster Refresh: 200ms faster refresh with no changes necessary. Improved Installation Time: 58% smaller install size and 56% fewer dependencies. next/image Improvements: Apple Silicon (M1) Support, plus more layout and loader options. Next.js Commerce Shopify Integration: Flexible data layer for composable e-commerce apps. Custom 500 Page: Ad
API RoutesExamples Basic API Routes API Routes Request Helpers API Routes with GraphQL API Routes with REST API Routes with CORS Good to know: If you are using the App Router, you can use Server Components or Route Handlers instead of API Routes. API routes provide a solution to build a public API with Next.js. Any file inside the folder pages/api is mapped to /api/* and will be treated as an API
<Image> Examples Image Component Good to know: If you are using a version of Next.js prior to 13, you'll want to use the next/legacy/image documentation since the component was renamed. This API reference will help you understand how to use props and configuration options available for the Image Component. For features and usage, please see the Image Component page. import Image from 'next/image'
IntroductionWelcome to the Next.js documentation! What is Next.js? Next.js is a React framework for building full-stack web applications. You use React Components to build user interfaces, and Next.js for additional features and optimizations. Under the hood, Next.js also abstracts and automatically configures tooling needed for React, like bundling, compiling, and more. This allows you to focus o
Back to BlogWednesday, November 18th 2020 Incrementally Adopting Next.jsPosted by Next.js has been designed for gradual adoption. With Next.js, you can continue using your existing code and add as much (or as little) React as you need. By starting small and incrementally adding more pages, you can prevent derailing feature work by avoiding a complete rewrite. Many companies need to modernize their
Markdown and MDX Markdown is a lightweight markup language used to format text. It allows you to write using plain text syntax and convert it to structurally valid HTML. It's commonly used for writing content on websites and blogs. You write... MDX is a superset of markdown that lets you write JSX directly in your markdown files. It is a powerful way to add dynamic interactivity and embed React co
Pages and LayoutsThe Pages Router has a file-system based router built on the concept of pages. When a file is added to the pages directory, it's automatically available as a route. In Next.js, a page is a React Component exported from a .js, .jsx, .ts, or .tsx file in the pages directory. Each page is associated with a route based on its file name. Example: If you create pages/about.js that expor
Image Optimization Examples Image Component According to Web Almanac, images account for a huge portion of the typical website’s page weight and can have a sizable impact on your website's LCP performance. The Next.js Image component extends the HTML <img> element with features for automatic image optimization: Size Optimization: Automatically serve correctly sized images for each device, using mo
We are excited to introduce Next.js 10, featuring: Built-in Image Component and Automatic Image Optimization: Automatically optimize images using the new next/image component Internationalized Routing: Start internationalizing your Next.js applications with built-in primitives Next.js Analytics: Measure and act on real user performance Next.js Commerce: An all-in-one starter kit for high-performan
headers Headers allow you to set custom HTTP headers on the response to an incoming request on a given path. To set custom HTTP headers you can use the headers key in next.config.js: module.exports = { async headers() { return [ { source: '/about', headers: [ { key: 'x-custom-header', value: 'my custom header value', }, { key: 'x-another-custom-header', value: 'my other custom header value', }, ],
AuthenticationUnderstanding authentication is crucial for protecting your application's data. This page will guide you through what React and Next.js features to use to implement auth. Before starting, it helps to break down the process into three concepts: Authentication: Verifies if the user is who they say they are. It requires the user to prove their identity with something they have, such as
Custom ServerExamples Custom Server SSR Caching By default, Next.js includes its own server with next start. If you have an existing backend, you can still use it with Next.js (this is not a custom server). A custom Next.js server allows you to start a server 100% programmatically in order to use custom server patterns. Most of the time, you will not need this - but it's available for complete cus
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