Best L4&L7 Stresser

Cobra

Strike first. Strike hard. Compose, fire and watch your requests land in real time.

cobra / panel
Request Console
Layer 7Layer 4
PlanViperConcurrents 4Max 300s
Target URL
https://api.your-service.com/v1/health
Method
GET
Concurrents4
Time60s
Send request
Live4
GET6s
POST6s
GET6s
PUT6s
01Pricing

Choose your venom

Twelve tiers, from first strike to apex. This is a preview of the ladder — log in to unlock and purchase.

Hatchling01
$30/ 7 days
  • 1 concurrent
  • 30s max duration
  • API access
  • Advanced methods
  • VIP access
Garter02
$40/ 30 days
  • 1 concurrent
  • 60s max duration
  • API access
  • Advanced methods
  • VIP access
Racer03
$60/ 30 days
  • 2 concurrent
  • 120s max duration
  • API access
  • Advanced methods
  • VIP access
Copperhead04
$88/ 30 days
  • 2 concurrent
  • 180s max duration
  • API access
  • Advanced methods
  • VIP access
Sidewinder05
$128/ 30 days
  • 3 concurrent
  • 240s max duration
  • API access
  • Advanced methods
  • VIP access
Most popular
Viper06
$180/ 30 days
  • 4 concurrent
  • 300s max duration
  • API access
  • Advanced methods
  • VIP access
Rattler07
$260/ 30 days
  • 5 concurrent
  • 360s max duration
  • API access
  • Advanced methods
  • VIP access
Cottonmouth08
$360/ 30 days
  • 6 concurrent
  • 480s max duration
  • API access
  • Advanced methods
  • VIP access
Taipan09
$520/ 30 days
  • 8 concurrent
  • 600s max duration
  • API access
  • Advanced methods
  • VIP access
Black Mamba10
$720/ 30 days
  • 10 concurrent
  • 900s max duration
  • API access
  • Advanced methods
  • VIP access
King Cobra11
$1040/ 30 days
  • 15 concurrent
  • 1200s max duration
  • API access
  • Advanced methods
  • VIP access
Apex
Basilisk12
$1600/ 30 days
  • 25 concurrent
  • 2400s max duration
  • API access
  • Advanced methods
  • VIP access
02Methods

Unique Cobra Methods

Every method is engineered in-house. Pick the layer, pick the pattern — and put any target under precise, controlled pressure.

05 methods
01

C-HTTP

Standard HTTP/1.1 and HTTP/2 request flood with full header and rate control.

HTTP
02

C-BYPASS

Challenge-aware traffic shaped to slip past anti-DDoS filters and CDN edge protection.

BYPASS

C-BURST

Botnet-powered HTTP/2 multiplexed assault for maximum pressure per connection. VIP only.

H2 BURST · VIP
04

C-SMART

Adaptive engine rotating fingerprints, headers and pacing to stay under the radar.

SMART

C-BROWSER

Botnet-driven real browser sessions execute the target's own scripts for legitimate-looking load. VIP only.

BROWSER · VIP