DDoS Protection

Free protection up to 40 Gbit/s with every server. Upgradeable to 1 Tbps for high-risk projects.

What is DDoS protection and why is it critical?

A Distributed Denial of Service (DDoS) attack overwhelms your server with massive amounts of illegitimate traffic, making it unreachable for real users. For businesses that depend on server uptime — especially video streaming platforms, e-commerce sites, and web applications — even minutes of downtime mean lost revenue, damaged reputation, and frustrated users. DDoS attacks are increasing in both frequency and sophistication: volumetric attacks now regularly exceed 100 Gbit/s, and application-layer attacks can bypass simple rate limiting. KVS Service includes DDoS protection with every dedicated server to ensure your infrastructure stays online even under attack.

What level of protection is included?

Every dedicated server from KVS Service includes DDoS protection at no additional cost:

Feature	Standard (Free)	Advanced (Upgrade)
Mitigation capacity	Up to 40 Gbit/s	Up to 1 Tbps
Protection layers	Layer 3 / Layer 4	Layer 3 / Layer 4 / Layer 7
Activation mode	Always-on	Always-on
Mitigation time	< 30 seconds	< 10 seconds
Cost	Included free	Contact sales

How does the DDoS mitigation system work?

Our DDoS protection operates in always-on mode, meaning traffic is continuously analyzed and filtered — there is no manual activation required and no delay when an attack begins. The mitigation system inspects all incoming traffic at the network edge before it reaches your server. Legitimate traffic passes through normally with minimal added latency (typically less than 1 millisecond), while attack traffic is identified and dropped. The system uses a combination of traffic pattern analysis, rate limiting, IP reputation scoring, and protocol validation to distinguish between real users and attack vectors.

What types of DDoS attacks are mitigated?

• Volumetric attacks — UDP floods, ICMP floods, DNS amplification, NTP amplification, and memcached reflection attacks that attempt to saturate your bandwidth. The standard 40 Gbit/s protection absorbs the vast majority of volumetric attacks targeting small to medium projects.
• Protocol attacks — SYN floods, fragmented packet attacks, and Ping of Death that exploit weaknesses in network protocol handling. These are filtered at the network layer before reaching your server's TCP stack.
• Application-layer attacks (advanced tier) — HTTP floods, Slowloris, and API abuse that target your web application directly. These sophisticated attacks mimic legitimate traffic and require deep packet inspection to identify and block.

When should I upgrade to 1 Tbps protection?

The standard 40 Gbit/s protection is sufficient for the majority of web projects and video platforms. Consider upgrading to 1 Tbps protection if your project has experienced DDoS attacks exceeding 40 Gbit/s in the past, if you operate in a high-risk industry where targeted attacks are common (gambling, gaming, financial services, political media), if downtime would cause significant financial losses exceeding the cost of advanced protection, or if you require Layer 7 application-layer filtering to protect against sophisticated bot attacks. Our team can analyze your risk profile and recommend the appropriate protection level.

Does DDoS protection affect server performance?

No. The DDoS mitigation system operates at the network edge, separate from your server hardware. During normal operation (no attack), traffic passes through the filtering infrastructure with less than 1 millisecond of additional latency — imperceptible to end users. During an attack, only the malicious traffic is dropped; legitimate traffic continues to flow to your server without interruption. Your server's CPU, RAM, and storage are not consumed by the mitigation process because it happens upstream in the network infrastructure.

How quickly is an attack detected and mitigated?

With always-on protection, there is no detection delay for volumetric and protocol attacks — the filtering rules are active continuously. When an attack begins, the mitigation system absorbs the additional traffic within seconds. For the standard tier, mitigation activates fully within 30 seconds. For the advanced tier, the response time is under 10 seconds. Unlike on-demand DDoS protection services that require an attack to be detected before mitigation begins (a process that can take 5-15 minutes), our always-on approach means your server is never exposed to unfiltered attack traffic.

Can I monitor DDoS attacks on my server?

If you experience a suspected DDoS attack, contact our 24/7 support team for real-time information about attack characteristics and mitigation status. Our team can provide details about the attack vector, peak traffic volume, duration, and the effectiveness of the filtering rules in place.

Discuss DDoS protection options