Known

A passive DNS monitor for home networks. See what devices are connecting to, in a browser, on your own network. No accounts or cloud. No telemetry.

Known connects to your router over Wi-Fi. You configure your router to use Known as its DNS server. Known forwards queries to your usual DNS resolver while logging what it sees. The interface shows the data in real time.

Everything stays on the device. Nothing is stored permanently. When you unplug it, the data disappears.

The firmware is open source.

  • Known device (Pico 2 W inside)
  • USB power cable
  • Quick start guide

You need: a router with configurable DNS settings and a web browser.

Each device is assembled and tested before shipping. Lead time is usually under two weeks, depending on the queue.

Ships with tracked delivery. No subscription, no recurring fee, no premium tier. One purchase, yours forever.

For full terms, see the refund policy.

ProcessorRaspberry Pi Pico 2 W (RP2350), dual-core ARM Cortex-M33 @ 150MHz
Memory520 KB SRAM (volatile). No flash storage for user data.
Connectivity2.4 GHz Wi-Fi (802.11n)
PowerUSB, 5V/1A
Data retentionNone. Volatile memory only. Data disappears on power loss.
Cloud dependencyNone. Local management only.
FirmwareOpen source (MicroPython). Available on GitHub.
InterfaceWeb-based, served directly by the device. No app required.
DNS log150-entry ring buffer in RAM
Known privacy network monitor device by Northsline