Unstack
Find out if your Wi‑Fi router is trapped behind another router.
Double NAT breaks gaming, video calls, cameras, and port forwards. Unstack probes your network, identifies the likely stack, and gives vendor‑specific bridge, passthrough, or access‑point steps.
Runs in your browser · no account · no install
Internet
NAT #1
ISP gateway
still routing
NAT #2
Wi‑Fi router
second translation
Your devices
broken UPnP / game NAT
Two routers in a chain = two NATs. Unstack helps you collapse that to one.