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Cloudflare DDoS Protection
Autonomous, always-on protection against DDoS attacks across L3/4 and L7.
Claude Code Knowledge Pack7/10/2026
Overview
Cloudflare DDoS Protection
Autonomous, always-on protection against DDoS attacks across L3/4 and L7.
Protection Types
- HTTP DDoS (L7): Protects HTTP/HTTPS traffic, phase
ddos_l7, zone/account level - Network DDoS (L3/4): UDP/SYN/DNS floods, phase
ddos_l4, account level only - Adaptive DDoS: Learns 7-day baseline, detects deviations, 4 profile types (Origins, User-Agents, Locations, Protocols)
Plan Availability
| Feature | Free | Pro | Business | Enterprise | Enterprise Advanced |
|---|---|---|---|---|---|
| HTTP DDoS (L7) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Network DDoS (L3/4) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Override rules | 1 | 1 | 1 | 1 | 10 |
| Custom expressions | ✗ | ✗ | ✗ | ✗ | ✓ |
| Log action | ✗ | ✗ | ✗ | ✗ | ✓ |
| Adaptive DDoS | ✗ | ✗ | ✗ | ✓ | ✓ |
| Alert filters | Basic | Basic | Basic | Advanced | Advanced |
Actions & Sensitivity
- Actions:
block,managed_challenge,challenge,log(Enterprise Advanced only) - Sensitivity:
default(high),medium,low,eoff(essentially off) - Override: By category/tag or individual rule ID
- Scope: Zone-level overrides take precedence over account-level
Reading Order
| File | Purpose | Start Here If... |
|---|---|---|
| configuration.md | Dashboard setup, rule structure, adaptive profiles | You're setting up DDoS protection for the first time |
| api.md | API endpoints, SDK usage, ruleset ID discovery | You're automating configuration or need programmatic access |
| patterns.md | Protection strategies, defense-in-depth, dynamic response | You need implementation patterns or layered security |
| gotchas.md | False positives, tuning, error handling | You're troubleshooting or optimizing existing protection |
See Also
- waf - Application-layer security rules
- bot-management - Bot detection and mitigation