Redirect Rules During Replatforming: How to Keep URL Logic Stable While the Stack Changes
Replatforming changes more than templates
When a site moves to a new platform, redirect behavior can shift because route resolution, host handling, middleware, caches, and CMS assumptions all change together.
Where projects break
Teams often rebuild redirects inside the new platform without documenting the old logic. That creates mismatches between expected URL behavior and what the new stack actually outputs.
Practical rule
Treat redirect logic as a separate migration artifact. Keep a source-of-truth map, test it outside the application when possible, and compare old vs new responses before launch.
Next Step
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