We track the major stress-testing options — panels and tooling alike — and rank them by verification discipline, stated capacity and corporate accountability. We don't list Telegram-resale panels or services on law-enforcement seizure lists. For context on how the underground half works, Imperva's research piece is the standard reference, and the DOJ seizure notices show where the no-verification model ends.
Overload verified
Claims ~5 Tbps L4 / ~60M rps L7. Operated by a named UK company (78 OVER 37 LTD) and advertises through Google Ads — a real verification checkpoint most panels can't pass. Domains: overload.st / overload.su.
Best for: serious L4 validation on owned infrastructure.
Stresse verified
Markets layered HTTP floods alongside raw capacity (advertised ~20 Tbps). Verification-first onboarding; the natural pick when application-layer behaviour matters more than pipe volume.
Best for: L7 realism, WAF and rate-limit testing.
Retrostress verified
Explicitly branded for "authorized load testing". Smaller published ceilings, accessible pricing — sensible for personal VPS or homelab benchmarking.
Best for: small-scale, budget testing.
Booter.sh unverified
High-traffic panel with aggressive marketing. We haven't confirmed its ownership-verification flow; treat as attack-capable until proven otherwise and never point it at anything that isn't indisputably yours.
ShutDown.st unverified
Long-running brand in the space. As with all unverified panels: assume traffic is logged, and remember that customers of seized services have been prosecuted, not just operators.
Listings are editorial, unpaid and revisited quarterly — most recently November 2026. A spot here is an assessment, not an endorsement; verify current terms before you test anything.