What React means
React lets developers build complex, fast interfaces from reusable pieces. It is the foundation of Next.js and many modern web apps. It is a strong choice for custom functionality, but a simple brochure site does not always need it.
Why it matters for your website
React makes it easier to build interactive features like filters, calculators and dashboards from reusable pieces. Many modern frameworks, like Next.js, are built on it, so there's a large pool of developers and tools. But a React site that loads everything in the browser can be slower and harder for search engines to read if built carelessly.
Example
A solar installer adds a React-powered savings calculator to its site. Visitors enter their monthly bill and see an estimate instantly without a page reload.
Tips
- Use a framework with server rendering, like Next.js, when SEO matters.
- Build reusable components so new pages stay consistent and are faster to make.
- Watch your JavaScript bundle size, since large bundles slow down phones.
Common mistakes
- Building a content-heavy marketing site as a client-only React app.
- Adding many third-party packages that bloat the page.
Questions about React
What is React?
A widely used JavaScript library for building interactive user interfaces from reusable components.
Is React a framework or a library?
React is a JavaScript library for building user interfaces. Frameworks like Next.js are built on top of it to add routing, rendering and other features.
Can Google crawl React websites?
Google can render JavaScript, but it may take longer and can miss content if something fails. Server-side rendering or static generation makes React content easier to index.
