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Learn more about Clerk, our approach to authentication, and company news.

Next.js SSR authentication with Clerk

Next.js SSR authentication is easy with Clerk – just a few lines of code to get started.

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How to skip CORS preflights and speed up your API with polyfills

CORS preflights add unnecessary latency to requests. Learn to use "simple" requests to skip the preflight entirely.

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The future of authentication is both stateful and stateless

Stateful authentication is more secure. Stateless authentication is faster. A hybrid approach delivers the best of both worlds.

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