About stresser.lol
stresser.lol is a professional load- and stress-testing platform designed to help developers, DevOps, and security teams validate the performance, reliability, and resilience of their own servers and services. It focuses on repeatable, auditable tests and clear reporting so teams can discover bottlenecks and improve capacity planning.
IMPORTANT — Legal & Ethical Notice: stresser.lol is built only for lawful, authorized, defensive load- and performance-testing of infrastructure that you own or where you have explicit, written permission to test. Unauthorized testing against third-party systems is illegal and strictly forbidden.
High-Level Features
- Realistic traffic simulation for common protocol families (HTTP, TCP, UDP) — for authorized testing only
- Configurable load profiles (concurrency, rate, duration) to reproduce realistic stress scenarios
- Real-time metrics, dashboards, and downloadable reports (latency percentiles, error rates, throughput)
- Secure authorization workflows and audit trails (who initiated, when, scope)
- Docker-friendly deployment and examples for isolated lab environments
- REST API and CLI for CI/CD integration and automated test pipelines
- Role-based access controls and safety limits to reduce accidental misuse
Supported Test Categories
The following categories are described at a high level to help authorized operators understand what the platform can simulate:
HTTP / Application-layer load
Simulates realistic HTTP request patterns to measure throughput, latency, and error handling for web applications and APIs.
Connection and transport-level tests (TCP)
Exercises server behavior under high numbers of concurrent connections and connection lifecycle changes to validate resource limits.
Packet-rate and throughput tests (UDP)
Measures how infrastructure handles high packet rates and raw throughput scenarios; useful for validating network stacks and packet-processing capacity.
Amplification-style scenarios
Provides controlled amplification simulations using private or emulated reflectors to validate defensive controls (rate limiting, ingress filtering) in isolated, authorized environments.
Game-server / protocol emulation
Generates synthetic traffic patterns that mimic typical game-server workloads or custom UDP-based services for capacity testing in lab environments.
Method Catalog
Special Methods
- DISCORD Premium — Static payload simulator targeting Discord VoIP-style infrastructure for resilience validation
- TCP-OVH Premium — TCP profile mirroring typical OVH hosting traffic to test edge firewall policies
- UDP-OVH Premium — UDP profile aligned with OVH mitigation runbooks to validate filtering efficacy
Game Methods
- UDP-RAKNET Premium — RakNet-style UDP query flood simulator for private game labs
- UDP-GAME Premium — Generic game-oriented UDP load profile
- GAME-MIX Premium — Mixed query workload combining multiple game service patterns
- R6-FREEZE Premium — High PPS UDP profile emulating Rainbow Six Siege stress cases
- R6-CRASH Premium — High PPS crash-focused UDP profile for controlled failure testing
- FIVEM — Spoofed UDP emulation of FiveM-style workloads for staging environments
UDP Protocol Profiles
- UDP-VSE — Valve Source Engine-style UDP latency/throughput simulator
- UDP-BYPASS — UDP traffic with defensive bypass patterns for blue-team rehearsal
- UDP-PPS — High packets-per-second UDP throughput profile
- UDP-RAW Premium — Raw UDP payload simulator for edge appliance validation
TCP Protocol Profiles
- TCP-ACK — ACK-flood style simulator for TCP stack validation
- TCP-SYN — SYN-flood traffic pattern for controlled lab stress
- TCP-TFO — TCP Fast Open request simulator for modern stack coverage
- TCP-BYPASS Premium — TCP load with defensive bypass patterns for advanced mitigation testing
- TCP-WEB Premium — HTTP-like TCP workload for web-tier drills
- TCP-SOCKET Premium — High-rate connection churn simulator to test socket exhaustion handling
Amplification & Reflection Scenarios
- WSD — Web Services Discovery amplification simulator
- ARD — Apple Remote Desktop amplification simulator
- COAP Premium — Constrained Application Protocol amplification profile
- CLDAP Premium — Connectionless LDAP amplification profile
- SNMP Premium — UDP-based SNMP amplification profile
- DNS — DNS amplification simulator
- SSDP Premium — Simple Service Discovery Protocol amplification profile
- NTP — Network Time Protocol amplification profile
- SADP Premium — Siemens Address Discovery Protocol amplification profile
- STUN Premium — Session Traversal Utilities for NAT amplification profile
Quickstart (Safe Lab Deployment)
- Sign in at https://stresser.lol and create an organization workspace. Enforce multi-factor authentication for every operator.
- Upload written proof of authorization (change request, signed consent letter) and define the approved IP ranges, time windows, and escalation contacts in the Authorization tab.
- Register your lab or staging targets. Keep connectivity confined to infrastructure you own or to networks covered by the consent document.
- Choose a simulation profile (e.g., TCP-SOCKET, UDP-VSE, GAME-MIX) and start with conservative concurrency and duration limits.
- Launch the exercise from the dashboard. Track live metrics, error rates, and automated safeguards; be ready to trigger the Safety Stop if impact exceeds the documented threshold.
- After completion, export the signed run report and archive it with your operational logs or incident-response records.
Security & Authorization Checklist
Before running any test, verify the following:
- ✅ You own the target environment or have explicit, written authorization from the owner (retain documentation)
- ✅ The test scope is documented (IP ranges, duration, expected impact)
- ✅ A rollback or stop procedure and on-call contacts are defined
- ✅ The schedule is approved (production testing must occur in an agreed maintenance window)
- ✅ Monitoring is active and an operator can abort if unexpected impact occurs
Warning: Violating this checklist can result in account suspension and legal consequences.
Why Teams Choose stresser.lol
- Future-proof performance testing for DevOps, SRE, and security teams with automated playbooks and actionable dashboards
- Cloud-native architecture aligned with compliance programs (SOC 2, ISO 27001) and change-management workflows
- Industry-specific profiles for ecommerce peaks, gaming launch-days, fintech transaction bursts, and SaaS multi-tenant rollouts
- Human-in-the-loop safety features that match corporate risk policies while still delivering realistic infrastructure resilience drills
Contact & Support
For enterprise evaluations, lab simulators, or guidance on safe testing, reach out through the Telegram support bot @stresserlol_supportbot or email security@stresser.lol.