The DDoS detection layer Cloudflare does not cover
Cloudflare protects HTTP/HTTPS traffic behind its proxy. But your bare-metal servers, game servers, mail servers, VoIP, and non-HTTP services are not behind Cloudflare. Flowtriq fills that gap with per-server L3/L4 detection at $9.99/node/month.
The visibility gap
What Cloudflare protects and what it does not
Cloudflare is excellent at what it does. It protects HTTP traffic at the edge. But infrastructure operators run more than just websites. Here is what is left exposed.
Bare-metal and colo servers
Dedicated servers in colocation facilities have public IPs that clients connect to directly. Cloudflare's reverse proxy does not see this traffic. A UDP flood hitting your server's IP bypasses Cloudflare entirely unless you use Magic Transit (enterprise pricing).
Game servers
Game servers use UDP (Minecraft, FiveM, Rust, ARK, CS2) and require direct client-to-server connections. Cloudflare Spectrum supports TCP proxying at $1/GB, but most game protocols are UDP and need direct IP connectivity. Flowtriq detects attacks on any port and protocol.
Mail servers and VoIP
SMTP, SIP, and RTP traffic cannot be proxied through Cloudflare. These services run on your server's IP and need direct connectivity. A SIP flood or SMTP bomb targeting your mail server is invisible to Cloudflare.
Custom TCP/UDP applications
APIs, databases, monitoring agents, VPN endpoints, and any non-HTTP service that listens on your server's IP are outside Cloudflare's proxy protection. If an attacker knows your origin IP, they can target these services directly.
Better together
How Cloudflare and Flowtriq work together
Cloudflare handles L7 at the edge. Flowtriq handles L3/L4 at the server. Together, you get full-stack DDoS visibility.
| Layer | Flowtriq | Cloudflare |
|---|---|---|
| L7 HTTP/HTTPS protection | Not a reverse proxy | Industry-leading L7 proxy protection |
| L3/L4 per-server detection | Per-node baselines, 1-2s detection | Only sees proxied traffic |
| Non-HTTP services | Any protocol, any port | Spectrum (TCP only, per-GB pricing) |
| Server-side PCAP | Automatic on every attack | Edge-level analytics only |
| Local firewall mitigation | iptables/nftables at kernel level | N/A (edge-based) |
| BGP FlowSpec/RTBH | 8 BGP adapters | N/A |
| Magic Transit auto-trigger | Native integration | Always-on or on-demand |
| Per-server baselines | Dynamic per-node | Edge-aggregate only |
| Pricing | $9.99/node/month | Free (HTTP proxy), enterprise (Magic Transit) |
When to add Flowtriq
Scenarios where Flowtriq complements Cloudflare
Bare-metal and colocation
Your servers have public IPs. Cloudflare's proxy protects your domain, but attackers who discover your origin IP can target it directly. Flowtriq detects these L3/L4 attacks at the server level.
Game server hosting
Game servers need direct UDP connectivity. Cloudflare's proxy does not cover these. Flowtriq detects UDP floods, SYN floods, and amplification attacks targeting game server ports.
Hosting providers
Your customers run diverse workloads. Cloudflare covers their websites, but their backend services, mail servers, and custom applications need per-server protection that Cloudflare does not provide.
ISPs and transit providers
Cloudflare protects HTTP at the edge. It does not protect your core network, subscriber infrastructure, or transit links. Flowtriq adds per-node and flow-based detection across your network.
Common questions