Authorized network testing

The most powerful IP stresser, with a free stresser trial

Test your own infrastructure at 4 Tbps with the most powerful IP stresser online: 30+ Layer4 and 20+ Layer7 methods. Start on the free stresser trial, no card, and read the delivery ratio and p95 before you pay for a window.

Start a free test See plans

Authorized testing only. You must own the target or hold written permission.

4 Tbps
Network capacity

Burst capacity behind the panel, shared across plans and lifted for a single test by VIP.

30+
Layer4 methods

SYN, UDP, ACK, connection churn and the rest of the packet catalogue, each in its own unit.

20+
Layer7 methods

GET, POST, slow body and TLS churn, aimed at a URL you control rather than a packet path.

5000 s
Longest window

One continuous test, long enough to watch a pool fill, saturate and recover.

How a run works

How an IP stresser run works here

A test is not a button that produces a graph. It is a target, a method, a window and a rate, followed by a reading that only means something if the first four were recorded.

01

Open the panel and pick a layer

Layer4 takes an IP, a port, a window and a method. Layer7 takes a URL instead. Both sit under the same Hub tab, so changing layer is a click rather than a different tool.

02

Size the window to the question

Sixty seconds answers whether the endpoint responds at all. Ten minutes answers where it stops responding. Windows reach 5000 seconds, and the form refuses anything above your plan before traffic moves.

03

Read the report and keep it

Delivery ratio, p50/p95/p99 and the split between transport and application errors. Export it, put it next to your own logs, and hand the diagnosis to whoever owns the fix.

Capabilities

What this IP stresser gives you

Two layers, one dashboard, and limits that are written down rather than discovered. Every capability below is visible on a free account except VIP, which is a paid switch.

Layer 4

Packet-level pressure, one unit at a time

SYN and UDP for raw packet rate, ACK for state-table pressure, connection churn for socket thrash. One method per run, because averaging two units produces a number nobody can defend in a review.

Layer 7

Requests against a real URL

HTTP floods, slow body and TLS handshake churn against an endpoint you control. The panel reports request rate, response ratio and latency, not packet counts wearing a different label.

Capacity

VIP moves one test to dedicated servers

VIP plans push a single run to 50-60 Gbit/s on dedicated hardware. Without VIP the rate depends on how busy the shared generators are, which is why the panel shows that state before you start.

Telemetry

Charts that update while you can still stop

Per-second metrics during the run, not a summary after it. That is the window in which a bad test can be cut, a rate lowered, or a target saved from a mistake.

Limits

Ceilings enforced in the form

One test at a time on Basic, three on Pro, one to four concurrent under Enterprise. A rate above your ceiling is rejected before dispatch, with the reason printed on the same screen.

Support

Chat inside the dashboard

Live support opens in the panel rather than an email thread, and covers setup, payment and configuration around the clock. Free accounts use exactly the same channel.

Reading a run

What an IP stresser report tells you

A graph without a unit is decoration. These are the four readings the panel puts in front of you, in the order they should be read.

  • Delivery ratio first, because a short window never warms a connection pool and a low first run is usually cold start.
  • Then p95 at the rate you asked for: flat while the rate climbs means the endpoint held, climbing early means it is already queueing.
  • Then the error split: 500 is the application, 502 or 504 is the proxy in front of it, 429 is a rate limit doing its job.
  • Finally the configuration. Target, method, window and rate are what make two runs comparable instead of two anecdotes.

Panel parameters

How long can one test run?

Up to 5000 seconds on paid plans. The free tier keeps windows short on purpose, so trial credit cannot be turned into a flood tool.

How many tests run at once?

One on Basic, three on Pro, and one to four under Enterprise depending on scope. The limit is visible before you press start.

What does VIP change?

VIP runs a single test on dedicated servers and lifts it to 50-60 Gbit/s. The panel shows whether the switch is on, because that state changes what the result means.

How does payment work?

Bitcoin only. Activation averages thirty minutes and can take longer while blocks confirm. No step in that flow asks for a card.

Plan activation follows the Bitcoin confirmation, usually within half an hour.

Principles

Rules this IP stresser will not bend

Authorized by construction

The target check cannot be switched off

Every target is confirmed when it is added and confirmed again the second a run starts. There is no toggle in the panel that skips it, which is the entire difference between a testing service and a booter with better typography.

Measured in readable units

Every number says which question it answered

Packets, connections, requests and percentiles each get their own row. A figure that cannot name its unit is a figure that will be misread in the meeting where it matters most.

Priced without a call

Three plans, published ceilings

Basic, Pro and Enterprise, with the caps written in the plan section instead of negotiated on a phone. Payment is Bitcoin only and activation does not wait for a salesperson to wake up.

Plans

IP stresser plans and ceilings

Every plan runs the same methods on the same network. What changes is concurrency, window length and whether VIP hardware is available.

Basic

Trial access

For a first look at the panel

$0 / month

Entry point for a single owned target. Same method list as the paid tiers, shorter windows and one test at a time.

  • One concurrent test
  • Short windows
  • Full method catalogue
  • Live support channel
Open Basic

Pro

Recommended

For teams on a schedule

$29 / month

Built for a testing rhythm: three tests in parallel, longer windows and room for five people on one account.

  • Three concurrent tests
  • Windows up to 5000 s
  • Five team members
  • Shared run history
Choose Pro

Enterprise

Custom

For critical infrastructure

Let's talk

Scoped for regulated environments: policy controls, private deployment options and a named support contact.

  • Custom scope
  • Policy controls
  • One to four concurrent
  • Dedicated support
Contact us

Questions

IP stresser questions, answered

Do I need an account to test anything?

Yes, and a free one is enough. Register with a nickname, email and password, then either ask live support for trial credit or open the $0 Basic plan. Neither route asks for a card.

Can I test a site I do not own?

No. The panel asks you to confirm ownership before a target is saved and checks again when the run starts. Without confirmation nothing is sent and no credit is spent.

What does a single run actually prove?

That your host answers at the rate you chose, that the path stays clean while it does, and what the error split looks like. It does not find the saturation point: that takes a ramp and several runs.

Why is the network shared between customers?

Generators and transit cost money every second. A shared pool with a published ceiling is how a free tier can exist at all; VIP buys a dedicated slice for one test at a time.

Where do reports live afterwards?

In the panel, with target, method, window and rate attached, and exportable when the run ends. Keep them: a result without its configuration is a screenshot, not evidence.

Is any of this legal?

On infrastructure you own or have written permission to test, yes. Pointed anywhere else it is a computer misuse offence in most jurisdictions, and the account is closed without refund.

Run an IP stresser test today

A single test against a target you own says more than a page of claims. It takes a few minutes to set up and no card to begin.

[email protected]

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Acceptable IP stresser use

IPStress.cc is limited to authorized network performance testing. You may only test systems you own or hold written permission to test. Unauthorized third-party testing, service disruption, malware, phishing, spam and any other illegal activity are prohibited, and accounts used that way are closed without refund.