DDoS-GUARD is one of the leaders
on the DDoS protection* market
The geo-distributed filtering network with scrubbing centers in the Netherlands, Germany, Russia, Japan, USA and total capacity over 1.5 Tbps allows us to offer a high-level service to our customers and provide protection against DDoS attacks
* DDoS-GUARD is awarded for an excellent customer service by an independent web hosting information center Host Advice
in real time
We use own traffic scrubbing infrastructure with vast network capacities in cooperation with the largest backbone providers

widescale system of the world-class level
No matter what part of the world your data is located in — DDoS-GUARD will ensure its full protection and immunity to attacks
Reliability of DDoS-GUARD is appreciated among numerous companies
We are trusted by more than 6 000 businesses worldwide

Anything in here will be replaced on browsers that support the canvas element

provides a vast knowledge base about DDoS attacks
Our experience allows us to gather a wealth of information on all types of network activity and protection, which we hasten to share with you
TCP packet
A network packet is a formatted unit of data carried by a packet-switched network. Computer communications links that do not support packets, such as traditional point-to-point telecommunications links, simply transmit data as a bit stream.
SYN request
Connection request over TCP. If a packet containing a SYN flag is sent, this means that a client is requesting a server for a connection. The server in turn must respond to the client with a packet that contains SYN-ACK flag.
A content delivery network or content distribution network (CDN) is a globally distributed network of proxy servers deployed in multiple data centers
The Internet Control Message Protocol (ICMP) is one of the main protocols of the internet protocol suite. It is used by network devices, like routers, to send error messages indicating, for example, that a requested service is not available or that a host or router could not be reached.
Web service
A Web service is a service offered by an electronic device to another electronic device, communicating with each other via the World wide web
SYN flag
Sequence number (32 bits) has a dual role: If the SYN flag is set (1), then this is the initial sequence number; If the SYN flag is clear (0), then this is the accumulated sequence number of the first data byte of this segment.
Bot (Zombie)
A zombie (also known as a bot) is a computer that a remote attacker has accessed and set up to forward transmissions (including spam and viruses) to other computers on the Internet
ACK-flag is a flag in TCP segment. It's indicates that the Acknowledgment field is significant. All packets after the initial SYN packet sent by the client should have this flag set.
DDoS attack
Distributed denial-of-service (DDoS) attack occurs when multiple systems flood the bandwidth or resources of a targeted system, usually one or more web servers
Server is a computer program or a device that provides functionality for other programs or devices, called "clients"
A domain name is an identification string that defines a realm of administrative autonomy, authority or control within the Internet
Internet hosting service is a service that runs Internet servers, allowing organizations and individuals to serve content to the Internet
in the media
We always have something interesting to share with you
Unknown attackers are trying to paralyze the operation of protection services with the most powerful DDoS attacks ever. They were started on September 16, 2016 and are still going on.
Hackers activity has decreased significantly, but they became more violent. Such a conclusion was reached by DDoS-GUARD experts after analyzing the statistical data for the 2nd quarter of 2016...