Trace every path.Before it breaks.
Open-source network observability from probes you control.
Netstamp is an open-source, self-hosted network observability app that helps measure latency, packet loss, routes, uptime, certificates, and incidents from the viewpoints that matter.
From real probes to real incidents.
01 02 Define assignments
03 View insights
04 Get notified before users notice
A green dot is not enough.
Netstamp connects the current state to the evidence behind it.
See every reporting location, its health, and the network view it contributes.
Start observing from the networks you control.
FAQ
How is Netstamp different from a conventional uptime monitor?
Netstamp runs checks from probes you control, so you can compare reachability, latency, packet loss, and routes across the networks that matter to you—not only vendor-owned cloud locations.
Understand controllers and probesIs Netstamp free, and is a hosted version available?
Netstamp is free, open-source software licensed under Apache 2.0. It is currently self-hosted only, so you provide the infrastructure and operations; there is no official managed service.
View the Apache 2.0 licenseWhat do I need to deploy Netstamp?
You need a Linux host with Docker Engine, Docker Compose v2, and persistent database storage. Public deployments also need a hostname, reverse proxy, HTTPS, and off-host backups.
Review deployment requirementsWhere can I run a Netstamp probe, and what network access does it need?
Probes support Linux on amd64 or arm64 with systemd. They need outbound HTTPS access to the controller and access to their targets, but no public IP or inbound port; other platforms are not currently supported installation paths.
Review probe requirementsCan Netstamp monitor private or internal services?
Yes. Place a probe in a network that can reach the private target; the controller does not need direct access to that network.
Learn how probes and assignments workWhich checks are supported today, and what are the current limitations?
Netstamp supports Ping, TCP connect, HTTP/HTTPS, and Traceroute. It does not currently provide separate DNS, browser, gRPC, SNMP, scriptable, or hosted public-probe checks, and Traceroute has no alert metrics.
Compare check types and limitationsWhere is my monitoring data stored, and what data leaves my infrastructure?
Netstamp stores its durable application data in your PostgreSQL database. Data leaves your infrastructure only through features you enable, such as notifications, external authentication, analytics, observability exporters, or public status pages.
Review the security boundaryHow do alerts, incidents, and notifications work?
A sustained Ping, TCP, or HTTP rule breach opens an incident, and recovery resolves it; missing data is not treated as healthy. Notifications support Webhook, Slack, Discord, Telegram, and Email.
Configure alerts and incidents