Next.js Authentication Guide 2026
Part 1 of 2 builds production Next.js authentication with Clerk in the App Router: defense in depth, step-by-step setup, Dashboard configuration, and the Proxy and session pitfalls to avoid.
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Next.js Authentication Guide 2026 - Part 2
Part 2 of 2 covers what breaks when Next.js authentication scales, wiring Clerk into Supabase Row Level Security, and how 8 providers compare on setup, pricing, and multi-tenancy.
Build vs Buy Authentication: The Real Cost of Rolling Your Own Auth
Part 1 of 2: the real cost of building your own authentication — build time, endless maintenance, breach liability, compliance, and 3-year TCO — versus buying Clerk.
Build vs Buy Authentication: The Real Cost of Rolling Your Own Auth - Part 2
Part 2 of 2: build vs. buy authentication compared feature by feature, when each makes sense, how to choose a provider, and where Clerk fits, with code to first login.
Moving Beyond Auth0: A Guide for Modern Development Teams
Compare Auth0 alternatives for 2026: pricing, dev experience, and complexity. See why Clerk often wins for modern app teams, plus honest exceptions where it doesn't.
Authentication + Billing: How Clerk and Stripe Work Together
Clerk Billing's native Stripe integration puts plan and feature entitlements on the session token you already verify. Part 1 covers the architecture and a B2C paywall setup.