Next.js — 158 sites
Next.js powers a huge share of modern SaaS marketing sites. These examples show how teams use it to ship fast, polished landing pages — from content-heavy marketing to app-like interactivity.
Next.js's appeal for a marketing site specifically (as opposed to the product app behind it) comes down to rendering flexibility — a team can statically generate the mostly-unchanging homepage and pricing page for near-instant load times, while server-rendering or incrementally revalidating pages that change more often (a blog, a directory like this one, or personalized content), all inside one framework rather than stitching together a separate static site generator and app. It's also the default choice for teams already building their product in React, since the marketing site and the app can share components, design tokens and even authentication state without a second toolchain. The tradeoff worth knowing: that same flexibility means a Next.js marketing site's performance is only as good as the rendering strategy chosen for each page — a site that server-renders everything on every request when it could have cached most of it will be slower than a simpler static site, so seeing 'built with Next.js' isn't itself a performance guarantee.