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What Is a DDoS Protected Server?

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What Is a DDoS Protected Server? How to Spot Real Protection

A DDoS-protected server is one hosted on network infrastructure that filters attack traffic before it reaches your machine — but a good share of the "DDoS protected" labels on the market do not mean real protection at all; they mean your IP gets null-routed the moment an attack starts. The difference between those two is the difference between your service staying up during an attack and going completely dark. This guide covers how protection actually works, the attack types, the right questions to ask a provider, and why game servers need a different approach.

The 2026 picture: shorter attacks, far heavier

2026 DDoS statistics: 31.4 Tbps record attack, 805 attacks above 1 Tbps, 90.6 percent of attacks under 10 minutes

The scale of attacks has changed fundamentally over the past two years. According to Cloudflare's H1 2026 report, 23.2 million network-layer attacks were mitigated in six months — an average of roughly 5,300 attacks per hour. In Q2 alone, 805 attacks exceeded 1 Tbps, a 519% quarter-over-quarter increase.

The largest attack on record was a 31.4 Tbps flood mitigated in November 2025, and it lasted just 35 seconds. That duration is no accident: 90.6% of attacks end in under 10 minutes.

Taken together, those two figures mean one thing: protection cannot depend on human intervention. By the time you open a ticket and wait for a reply, the attack is over and your server has already been down. Protection has to engage automatically, within seconds.

What a DDoS attack is and how it works

A DDoS (Distributed Denial of Service) attack sends traffic from many sources at once to make a service unusable. The goal is not to break into the system but to keep it so busy it cannot serve legitimate users.

Attacks fall roughly into three groups:

Volumetric attacks (L3/L4)

Aimed at filling the link. Most network-layer attacks live here: UDP floods at 56%, SYN floods at 17%, TCP floods at 10%, ACK floods at 8% and ICMP around 6%. DNS-based attacks also came to the fore in 2026, accounting for 34.3% of network-layer attacks.

Protocol attacks

Target not bandwidth but the state tables of firewalls and load balancers. They can cause large impact with relatively little traffic.

Application-layer attacks (L7)

Exhaust the application with requests that look legitimate. The hardest type to distinguish — volumetric filtering does not help here.

What "DDoS protected" means — and what it does not

Three very different practices hide behind the same phrase:

1. Blackhole / null route — not protection

When an attack is detected, the provider discards all traffic to your IP. The infrastructure is protected; you are not. Your service is completely unreachable for the duration. The outcome is exactly what the attacker wanted.

2. Traffic scrubbing — this is real protection

Traffic passes through a scrubbing centre, attack packets are stripped out, and legitimate traffic keeps reaching your server. Your service stays up during the attack.

3. Web-only protection (proxy/CDN)

Protects HTTP/HTTPS traffic. Effective for websites, but insufficient for game servers, voice servers or anything on custom ports — those services do not sit behind the proxy.

Four questions to ask a provider

Four questions to ask when buying a DDoS protected server: layer, UDP coverage, activation time and what happens to legitimate traffic

"How many Gbps of protection?" is the wrong question, because a capacity figure alone says nothing about what is protected. The right questions are:

  • Which layer does protection operate at? L3/L4 only, or L7 as well?
  • Is UDP covered? On game and voice servers this question decides everything.
  • How fast does it engage? Automatically, within seconds? With 90% of attacks under 10 minutes, a response measured in minutes is already too late.
  • What happens to legitimate traffic during an attack? Is it null-routed, or scrubbed and delivered?

With written answers to those four, the real meaning of "200 Tbps" versus "10 Gbps" between two providers also becomes clear. We covered how to read capacity figures in what DDoS protection capacity actually means.

Why game servers are different

Gaming absorbs roughly 19% of DDoS attacks. The motivation is not only financial: in competitive games and roleplay communities, knocking a rival server offline is used directly as a way to win players.

Technically, the critical detail is this: game traffic runs largely over UDP. Standard web protection — proxy-based CDNs included — is designed for HTTP/HTTPS and does not cover game ports. A game server therefore needs network-level protection that includes UDP. We covered this in does Cloudflare protect game servers.

A second detail: attack frequency is high on infrastructure hosting game servers. For an attack on a neighbouring customer not to reach you, resources must be isolated — on shared resources, a neighbour's attack shows up in your TPS.

Which products need protection most?

The need is not uniform across services. Roughly in priority order:

  • Game servers: Highest priority. Attack frequency is high and even a brief outage converts into lost players.
  • Voice servers: UDP-based, so the same risk profile as game servers. An outage scatters the community.
  • E-commerce sites: Exposed during campaign windows, where downtime has a direct revenue cost.
  • APIs and SaaS services: An outage stops not only you but your customers' systems too.
  • Corporate brochure sites: Lower risk, but basic protection is still worth having for brand reputation.

And if you resell what you host — reseller hosting or game server rental — protection is no longer only about your continuity but your customers' as well.

How protection infrastructure works

Scrubbing-based protection works in roughly three stages:

  • Detection: Network traffic is continuously sampled; when volume, packet rate or protocol mix deviates from baseline, an attack signature forms.
  • Diversion: Traffic to the target IP is routed into a scrubbing centre. In well-built systems this step is automatic and takes seconds.
  • Filtering and delivery: Attack packets are stripped and the remaining legitimate traffic is forwarded. The only user-visible effect is usually a small amount of added latency.

The critical measure here is that third step: if the system stops the attack but also locks out legitimate users, the outcome is not far from a null route. It is worth asking a provider what happens in the case of false positives.

Protection alone is not enough: server-side work

Network-level protection stops volumetric attacks, but your server's own configuration is part of the defence:

  • Hide your real IP. If you use a proxy on the web side, make sure your origin IP does not leak through old DNS records, email headers or subdomains.
  • Open only the ports you use. Configure the firewall closed by default.
  • Apply connection limits. Per-IP concurrent connection and request-rate limits reduce the impact of L7 attacks.
  • Cache the application layer. A page served from cache is a request that never reaches the database.
  • Log and monitor. If you do not know when an attack started and which vector it used, you cannot prepare for the next one.

If you have just taken delivery of a server, follow our first 10 steps to secure a new VDS for the basic hardening.

What to do during an attack

Since most attacks end within minutes, the real work happens beforehand. Still, when one hits:

  • Do not reboot the server in a panic; it usually makes things worse.
  • Confirm your provider's protection system is actually engaged.
  • Identify which port and protocol is being targeted — that determines the next step.
  • On the web side, temporarily enable strict rate limiting and challenges.
  • After it ends, archive the logs and record which vector was used.

Nubitro DDoS-protected servers

Nubitro provides 200 Tbps+ DDoS protection as standard across the infrastructure, covering every server product — web hosting, VDS, game servers and voice servers. Servers run in Istanbul, Turkey on AMD Ryzen 9 9950X processors with NVMe M.2 SSD storage and 1 Gbps unmetered traffic.

Because resources are assigned through hardware partitioning, load hitting a neighbouring customer does not show up in your performance — in a DDoS context, that design decision matters as much as the protection itself.

Browse the products on our Ryzen VDS, FiveM server and dedicated server pages, or see everything on the Nubitro homepage.

Frequently Asked Questions

Does a DDoS-protected server stop every attack?

It stops most volumetric attacks at the network level. Application-layer (L7) attacks resemble legitimate requests and need additional measures: rate limiting, caching and challenge mechanisms. Protection is one layer; configuration is the other.

Why doesn't null-routing count as protection?

Because it makes your service unreachable — exactly what the attacker wanted. The provider's infrastructure is protected; your service is not. Real protection means legitimate traffic keeps flowing.

I use Cloudflare — is that enough?

It can be effective for your website. But if you run a game server, a voice server or anything on a custom port, that protection does not cover those ports. You need network-level protection that includes UDP.

My site slows down during an attack but stays up. Is that normal?

If a scrubbing infrastructure is working, yes: filtering can add some latency. If it becomes completely unreachable, you have probably been null-routed, or the bottleneck is your own server.

My site is small — would I really be a target?

A significant share of attacks is carried out by automated tools with no target selection. And on game and community servers, the motivation is often personal rather than commercial. Being small guarantees nothing.

Should protection be a paid add-on?

Both models exist. What matters is not price but scope: which layer, does it include UDP, does it engage automatically. A paid solution that null-routes is worse than an included one that scrubs.

Summary

  • 23.2 million network-layer attacks were mitigated in H1 2026 — around 5,300 per hour.
  • 805 attacks exceeded 1 Tbps in Q2 alone, a 519% quarter-over-quarter rise.
  • The largest recorded attack was 31.4 Tbps and lasted just 35 seconds.
  • 90.6% of attacks end within 10 minutes, so protection must be automatic.
  • 56% of network-layer attacks are UDP floods; 34.3% are DNS-based.
  • Null-routing is not protection; real protection means scrubbing.
  • Proxy-based web protection does not cover game and voice ports.
  • Gaming absorbs roughly 19% of DDoS attacks.
  • Ask about layer, UDP coverage, activation time and legitimate traffic — not capacity.
  • Port restriction, rate limiting and caching are part of the defence.
  • On shared resources, an attack on a neighbour affects you too.
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