DDoS-Guard bypass: marketing vs reality
“Unbypassable DDoS protection” — DDoS-Guard's landing page says it in so many words. Our clients regularly arrive with a different story: “the site was behind DDoS-Guard and still went down”. Here is an honest look at where their marketing ends and physics begins.
What they promise
Geo-distributed scrubbing, TLS termination, challenge modes for every taste — Passive, JS Challenge, CAPTCHA. On paper, a solid L7 offering. In practice, most of their filtering stands on two legs: IP reputation and challenge cookies.
Where it breaks
IP reputation works against datacenter bots — but our swarm is residential devices, each with a clean history and a real ISP behind it. Challenge cookies work against scripts that cannot execute the challenge — but once you can (real browser engines), the cookie is just math: solve once per session, ride through. And when the challenge itself becomes the bottleneck, the protection is doing the attacker's job: every visitor pays the tax of slower first-page loads while the swarm keeps coming.
The pattern we keep seeing
- Client's site sits behind DDoS-Guard, “protected”.
- Someone launches a real attack — site goes down anyway.
- DDoS-Guard's answer: upgrade the plan / enable stricter mode (hello, CAPTCHA for real users).
- Client comes to us for a stress test to check what they actually pay for.
If that reads familiar, our testing guide shows how to measure your provider's claims — mitigation time, false positives, L4 vs L7 asymmetry.
Bottom line
DDoS-Guard stops panel booters and small floods — like most filters. Against a botnet that looks like the real internet, the outcome is decided by capacity and adaptation, not by slogans. Want proof on your target? Free test attack — graphs first, payment after.