So far, you've learned how React applications are typically Single-Page Applications (SPAs) that can be used as a Progressive Web App (PWA). This means the application is rendered client-side, making it load in the browser when the user visits your application. But did you know React also supports Server-Side Rendering (SSR), as you might remember from back in the old days when code only rendered from a server?

In this chapter, you'll add declarative routing to a Create React App using react-router and have components dynamically loaded from the server instead of the browser. To enable SSR, the React feature, Suspense, will be used with ReactDOMServer. If you're interested in Search Engine Optimization (SEO), this chapter will use React Helmet to add metadata to the page so your application can be better indexed...