Decision matrix for static, ISR, SSR, and PPR — covering freshness, TTFB, and CDN costs.
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PPR vs ISR vs SSR — how do you pick the rendering strategy in Next 15?
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pprisrrendering
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Sketch your approach before reading the solution — that's what interviews test.
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Use PPR for mixed pages (static shell + personalized holes), ISR for time-based revalidation, SSR/dynamic for fully per-request data — PPR gives CDN speed with per-request holes.
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Dossier 44 of 95 decoded in the Next.js track. One more won't hurt.