glossary2 min read

SSR vs SSG vs ISR

Compare server-side rendering, static generation, and incremental regeneration.

SSG (Static Site Generation): pages built at compile time, served as static HTML. Fastest, cheapest, most secure. Used by Toolular. SSR (Server-Side Rendering): pages built on each request. Needed for personalized or real-time content. ISR (Incremental Static Regeneration): pages rebuilt periodically in the background. Best of both — static speed with fresh data. Choose SSG for marketing sites, blogs, docs. SSR for dashboards, authenticated content. ISR for e-commerce, news, frequently updated content.