Smart Fallback Chain

Try up to three fallback URLs in order and use the first that responds successfully.

What it is

Instead of a single static fallback, Flinku can probe a chain of HTTPS URLs. This helps when primary landing pages occasionally fail or regional mirrors are used.

Dashboard setup

1. Edit a link → Smart fallback chain.
2. Add up to 3 URLs in priority order.
3. Save. Flinku uses the chain when a standard fallback would apply for that context.

How it works

Flinku issues lightweight HEAD requests to each URL in order. The first URL that returns HTTP 200 wins and is used for the redirect. If none return 200, the project default fallback applies.

API field

"fallbackChain": [
  "https://primary.example.com/landing",
  "https://backup.example.com/landing",
  "https://status.example.com/ok"
]