1. Verify the target
Add an address you own and confirm it through DNS or the panel. Nothing is sent until the check passes.
Layer 4 pressure on an address you own, with the same report format paid runs produce.
Updated November 8, 2026, 14:54 (GMT+3) · reviewed for accuracy
A free IP stresser run gives you one concurrent Layer 4 test with every method available: SYN, UDP, ACK, TCP connect, ICMP and GRE. The report matches a paid run, so the free IP stresser result is comparable with a longer window later. The free stresser trial covers both layers.
The free tier is for confirming that an endpoint behaves as expected, not for mapping a full capacity curve. That needs several runs and belongs to a paid window.
The free IP stresser shows packets per second, delivery ratio and the first error class. If the host answers but the service fails, the question is at Layer 7: start with a free L7 stresser run.
If the host answers but the service fails, the question is at Layer 7: start with the free L7 stresser.
Turn one free IP stresser run into a decision by raising the rate in steps and noting where delivery falls. The stresser panel keeps the baseline so the paid run can confirm it.
Add an address you own and confirm it through DNS or the panel. Nothing is sent until the check passes.
Layer 4 takes an IP, a port and a method. Layer 7 takes a URL. One method per run keeps the result readable.
Delivery ratio, latency percentiles and error classes stay in the account so two runs can be compared.
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No card at signup. Verify a target you own and read the report.