Introducing PacketStream Pulse: Free, Per-Carrier Network Testing for Korea
We're opening up PacketStream Pulse, the network probing tool we've used internally, for free. Run ICMP, TCP, HTTP, DNS and MTR tests from Korean carrier probes at once, and watch latency, loss and routing stream live per probe.
1 min readPacketStream
Probe the internet. Run ICMP, TCP, HTTP, DNS and MTR tests from many probes at once and stream latency, loss and routing live, per probe.
We are opening up PacketStream Pulse, the network probing tool we have used internally, for everyone.
What it is
Pulse runs tests from several probes at the same time and shows results live. Unlike a ping from a single point, it lets you compare the view from different locations and carriers side by side.
Built for our own monitoring
Pulse started as the tool PacketStream built, and uses every day, to monitor uptime across production infrastructure and optimize routing. We use it to watch quality across our global backbone and major Korean carriers, spot path anomalies and latency increases early, and tune routing.
Why we are opening it
In Korea there has been practically no public service for checking latency per carrier (ISP). The gap is largest for game servers, real-time services and VPNs, where carrier quality differs the most.
Probes: four points
You can see major Korean carrier backbones and a real residential line.
| Probe | Line |
|---|---|
| KT | Backbone |
| SK | Backbone |
| LG U+ | Backbone |
| LG U+ | Residential |
Five test types
| Test | What it checks |
|---|---|
| ICMP | Round-trip latency and loss |
| TCP | Handshake reachability on a port |
| HTTP | Timing for each request phase |
| DNS | Resolver query responses and records |
| MTR | Per-hop path and latency |
Free to use
Pick a target host and probes, then run. Pulse is protected by Cloudflare Turnstile to prevent abuse.
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