1# Cloudflare DDoS Protection
2 
3Autonomous, always-on protection against DDoS attacks across L3/4 and L7.
4 
5## Protection Types
6 
7- **HTTP DDoS (L7)**: Protects HTTP/HTTPS traffic, phase `ddos_l7`, zone/account level
8- **Network DDoS (L3/4)**: UDP/SYN/DNS floods, phase `ddos_l4`, account level only
9- **Adaptive DDoS**: Learns 7-day baseline, detects deviations, 4 profile types (Origins, User-Agents, Locations, Protocols)
10 
11## Plan Availability
12 
13| Feature | Free | Pro | Business | Enterprise | Enterprise Advanced |
14|---------|------|-----|----------|------------|---------------------|
15| HTTP DDoS (L7) | ✓ | ✓ | ✓ | ✓ | ✓ |
16| Network DDoS (L3/4) | ✓ | ✓ | ✓ | ✓ | ✓ |
17| Override rules | 1 | 1 | 1 | 1 | 10 |
18| Custom expressions | ✗ | ✗ | ✗ | ✗ | ✓ |
19| Log action | ✗ | ✗ | ✗ | ✗ | ✓ |
20| Adaptive DDoS | ✗ | ✗ | ✗ | ✓ | ✓ |
21| Alert filters | Basic | Basic | Basic | Advanced | Advanced |
22 
23## Actions & Sensitivity
24 
25- **Actions**: `block`, `managed_challenge`, `challenge`, `log` (Enterprise Advanced only)
26- **Sensitivity**: `default` (high), `medium`, `low`, `eoff` (essentially off)
27- **Override**: By category/tag or individual rule ID
28- **Scope**: Zone-level overrides take precedence over account-level
29 
30## Reading Order
31 
32| File | Purpose | Start Here If... |
33|------|---------|------------------|
34| [configuration.md](./configuration.md) | Dashboard setup, rule structure, adaptive profiles | You're setting up DDoS protection for the first time |
35| [api.md](./api.md) | API endpoints, SDK usage, ruleset ID discovery | You're automating configuration or need programmatic access |
36| [patterns.md](./patterns.md) | Protection strategies, defense-in-depth, dynamic response | You need implementation patterns or layered security |
37| [gotchas.md](./gotchas.md) | False positives, tuning, error handling | You're troubleshooting or optimizing existing protection |
38 
39## See Also
40- [waf](../waf/) - Application-layer security rules
41- [bot-management](../bot-management/) - Bot detection and mitigation
42