
301 vs 302 vs 307 vs 308 Redirects: Which One Should You Use?
Use 301 or 308 for permanent moves, and 302 or 307 for temporary ones. The key question is whether the HTTP method must stay unchanged.
Engineering deep dives, SEO strategies, and migration guides for the modern web.

Firebase says Dynamic Links shut down on August 25, 2025. Learn how to replace them with branded smart links, app links, and safer fallback routing.

Use 301 or 308 for permanent moves, and 302 or 307 for temporary ones. The key question is whether the HTTP method must stay unchanged.

Learn how to redirect a domain without losing paths, UTM parameters, or campaign tracking, while avoiding loops, SSL issues, and broken links.

Learn how to find redirect chains and loops, collapse unnecessary hops, and fix routing mistakes before they slow users down or hurt SEO.

Use this 15-point redirect checklist to protect high-value URLs, avoid chains, and catch website migration mistakes before you flip DNS.

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Product updates, routing strategies, and migration notes — no fluff.