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Next.js Server Actions Best Practices 2026: Security, Testing & Production Patterns
Next.js Server Actions are public POST endpoints disguised as functions. This 2026 guide covers CVE-2025-55182 RCE, Data Access Layer pattern, Zod validation, rate limiting, GDPR compliance, testing with Vitest, and a 10-item production checklist.
Next.js Testing Best Practices: Vitest, Jest & Playwright for App Router (2026)
Set up Next.js testing with Vitest, React Testing Library, and Playwright for the App Router. Includes Server Component patterns, CI/CD integration, GDPR-safe test data, and a cost breakdown.
Next.js Middleware in 2026: proxy.ts Migration, Auth Guards, and Rate Limiting
Next.js 16 deprecated middleware.ts in favor of proxy.ts. Learn how to migrate, build secure auth guards, rate limit with Upstash Redis, and set up A/B testing — without the CVE-2025-29927 mistake.
Next.js Internationalization with App Router: The 2026 Guide
Translated sites get 327% more AI Overview visibility than English-only sites. Step-by-step next-intl setup, hreflang SEO, GDPR compliance, performance, and cost breakdown for Next.js i18n.
Next.js ISR Guide 2026: Incremental Static Regeneration with App Router
Next.js ISR delivers sub-50ms TTFB on cache hits while keeping content fresh. Learn time-based revalidation, revalidatePath vs revalidateTag, CMS webhooks, unstable_cache, and Redis self-hosting.
React Native OTA Updates 2026: EAS Update, Rollouts, Rollbacks & CodePush Migration
Everything React Native teams need to ship OTA updates safely in 2026: EAS Update setup, staged rollouts, automated rollbacks, CodePush migration, and app store policy rules.
Next.js App Router Authentication in 2026: Better Auth, CVE-2026-44575, and the Defense-in-Depth Pattern
A practical guide to Next.js App Router authentication in 2026: the middleware vulnerabilities that changed everything, the Auth.js → Better Auth shift, and how to implement defense-in-depth auth.
Next.js Core Web Vitals Optimization: How to Score 90+ on Lighthouse in 2026
Learn how to improve Next.js Core Web Vitals in 2026 — fix LCP, INP, and CLS with concrete code patterns, automate Lighthouse CI gates, and see the business ROI behind each optimization.
How to Self-Host Next.js on a VPS with Docker and Nginx (2026 Guide)
Deploy Next.js on a VPS for under $30/month instead of $305/month on Vercel Pro. Full guide: Docker standalone output, Nginx, GitHub Actions CI/CD, Redis ISR caching, and security hardening.
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