rii.link/learn
The Redirect.
Ideas, playbooks and engineering notes on links, smart routing and everything between click and destination.
New issues every few weeks. No fluff.
The smart routing playbook: one link for every device, geo and moment
App store links that know the platform, promos that end on time, docs that speak the visitor's language — routing rules turn one short link into a small decision engine.
QR codes that don't suck: branding, tracking and dynamic targets
A QR code is just a short link you cannot edit after printing — unless the destination is dynamic. How to design codes people actually scan, and keep control after the ink dries.
Links for LLMs: serving JSON to agents while humans get pages
AI agents follow links too — but they want structured data, not HTML. One URL that redirects people and answers machines with clean JSON changes what a "link" can do.
UTM hygiene: a naming convention your future self will thank you for
Nothing ruins analytics faster than Facebook, facebook and FB living as three different sources. A small convention, enforced at the link layer, keeps reports clean forever.
Migrating 50,000 links without losing a click
Switching link providers feels risky: every printed QR code and every old post keeps pointing at the old domain. A staged migration makes it boring — in the best way.