Edge rendering
Related service Website & online shop
DEFINITION
Code runs at the CDN edge closest to the user (Cloudflare Workers, Vercel Edge). Dynamic responses with ~10–50 ms TTFB.
- SSR (Server-Side Rendering)→
HTML rendered by the server per-request, fresh for every user. Ideal for dynamic content (dashboards), but slower than SSG.
- SSG (Static Site Generation)→
Pages are produced at build time as HTML and served from a CDN. Near-zero TTFB. DField's own site runs this way across 111+ pages.
- ISR (Incremental Static Regeneration)→
SSG + timed regeneration: the HTML is static but regenerates on a schedule. Ideal for blog content · freshness with CDN speed.
- RSC (React Server Components)→
React components that run exclusively on the server and never ship to the browser. Result: less client-side JS and faster hydration.
- LCP (Largest Contentful Paint)→
Time until the largest visible element paints. Google Core Web Vitals passes under 2.5s · we usually land marketing pages under 1s.
- Core Web Vitals→
The three metrics (LCP, INP, CLS) Google uses as a ranking factor. We optimise to them on every release.
- 0126 Apr 2026The CSP we ship · with notes on why each directive is there→
- 0223 Apr 2026On-device LLMs in 2026 · Gemini Nano vs Apple Intelligence for mobile builds→
- 0322 Apr 2026Speculation Rules API in 2026 · near-instant nav, zero JS cost→
- 0410 Mar 2026Multi-tenant SaaS with Next.js: from template to production→
- 0514 Feb 2026Core Web Vitals on Next.js: from 4.5s LCP to 0.9s in 3 weeks→