<b>Framework: Device-based routing tiers</b>

<b>Framework: Device-based routing tiers</b>

Purpose: stop serving desktop offers to mobile clicks and watching them bounce.

Split traffic on four signals, in this order:

— OS first: iOS and Android convert on different offers; never lump them
— Device type second: phone vs tablet vs desktop
— Connection third: WiFi vs carrier (mobile-content offers need carrier)
— Browser last: in-app webviews (Facebook, TikTok) break some flows

Checklist:

☐ Set a distinct offer per OS, not a shared 'mobile' bucket
☐ Route in-app browsers to webview-safe landings only
☐ Confirm carrier detection works — WiFi clicks shouldn't hit pin-submit offers
☐ Keep a desktop fallback; 8-15% of 'mobile' traffic is mislabeled

Mislabeled device data is normal. Always keep a catch-all so misreads still monetize.

Review the device split monthly.