DDoS stresser
A stresser sends controlled load at your host. RacerAPI runs the attack fleet for you: pick a target, a method and a duration, and the traffic starts in seconds.
Professional
DDoS stresser
Layer 4 and Layer 7 floods against your own infrastructure. No setup, unlimited attacks, results in seconds.
A booter and IP stresser for Layer 4 and Layer 7, with an API in every plan.
160M
L7 RPS
99.98%
Uptime
Platform capabilities
Enterprise infrastructure
01
Security first
Encrypted communications and compliance-ready protocols for every attack scenario.
02
Multi-layer attacks
L7 simulations with customizable traffic patterns, plus Layer 4 UDP/TCP floods on Layer 4 plans.
03
Instant deployment
Zero setup. Start stress testing your infrastructure within seconds of activation.
04
Real-time analytics
Live performance metrics, historical data and detailed reports per attack run.
Transparent pricing
Choose your plan
Basic
$18/ 30 days
- 6 concurrent attacks
- 600s max duration
- Unlimited daily attacks
- API access included
Standard
$24/ 30 days
- 8 concurrent attacks
- 1200s max duration
- Unlimited daily attacks
- API access included
Pro
$30/ 30 days
- 10 concurrent attacks
- 1800s max duration
- Unlimited daily attacks
- API access included
Ultra
$36/ 30 days
- 12 concurrent attacks
- 2400s max duration
- Unlimited daily attacks
- API access included
Infinity
$45/ 30 days
- 15 concurrent attacks
- 3000s max duration
- Unlimited daily attacks
- API access included
Blackmailler 1
Popular
$60/ 30 days
- 20 concurrent attacks
- 3600s max duration
- Unlimited daily attacks
- API access included
Infrastructure
stress testing
Stress testing analyzes your system's resilience under extreme load conditions. This evaluation determines your infrastructure's capabilities when facing high-traffic scenarios and real-world attack simulations.
By proactively testing infrastructure limits, you identify bottlenecks and vulnerabilities in a controlled environment — before they impact users or operations.
Stresser, booter, Layer 4 and Layer 7
The whole stack
Booter
A booter is the same idea aimed at game and voice servers, where a short burst is enough to knock a session offline. Durations start at one second.
Layer 4 (UDP/TCP)
Volumetric floods over UDP and TCP saturate bandwidth and connection tables. Layer 4 takes a bare IP, a port and a flood method.
Layer 7 (HTTP/HTTPS)
HTTP floods with TLS, RACE and other request patterns weigh on the web stack itself — useful for proxies, CDNs and application servers.
FAQ
Common questions
What is an IP stresser used for?
An IP stresser validates infrastructure resilience by simulating real-world traffic. It identifies bottlenecks, ensures uptime during spikes and prepares systems before issues impact users.
Is this a DDoS stresser or a booter?
Both names describe the same service. RacerAPI is a stresser for testing infrastructure and a booter for knocking a game or voice session offline during a load test.
What is the difference between Layer 4 and Layer 7?
Layer 4 floods the transport layer with UDP or TCP volume; Layer 7 floods the application with HTTP requests. Layer 4 needs a plan with Layer 4 included and a bare IP; Layer 7 accepts a domain or URL.
How high is your testing capacity?
We deliver up to 160 million requests per second on Layer 7, plus UDP and TCP floods on Layer 4.
What traffic types can you simulate?
Layer 7 (HTTP/HTTPS) methods such as TLS and RACE and STORM and LEGACY and BURST with customizable traffic patterns, or Layer 4 floods such as UDPBYPASS and UDP-PPS and SOCKET and FIVEM and GAME and UDP-STORM and MIXFLOOD on a Layer 4 plan.
What are your pricing options?
Plans start at $18 for 6 concurrents and scale up to 100. Concurrency is shared by your attacks, so 6 concurrents means one attack of 6 or three attacks of 2 — all include unlimited daily attacks, full API access and instant activation.
Is there an API?
Yes. Every plan includes the API, with a dedicated endpoint and a private key you can rotate at any time.
Ready to test your limits?
Instant activation. Unlimited attacks. No contract.