A record-breaking number of distributed denial of service (DDoS) instances have been reported in recent months, according to cybersecurity researchers.

In the first half of 2021, there were 5.4 million documented DDoS attacks, up 11% from the same period in the previous year, according to cybersecurity researchers at Netscout.

Web security engineers have a long history of dealing with distributed denial-of-service (DDoS) attacks and working to mitigate them. To do so, they have developed tools and services that help prevent, detect, and respond to these potentially damaging attempts.

Let’s look at some of the most common tools used to mitigate DDoS attacks.

Table of contents:

7 Most Popular DDoS Attack Prevention Tools

The seven most popular tools for DDoS protection are:


A DDoS security tool called Link11, which is cloud-based, can recognize and stop DDoS attacks in layers 3 through 7 in real-time. It also has a ground-breaking, AI-based attack detection system.

The AI of the tool examines known attack pattern sequences and contrasts them with your current traffic. The program will send you an SMS alert as soon as it discovers a threat if a connection to your website behaves similarly.


  • Outstanding report creation capabilities
  • The most widely used device on this list
  • Absorption of DDoS attacks
  • Cloud-based, allowing for easy setup
  • It has a cutting-edge, AI-based assault detection method


A high-performance DDoS defense service called Cloudflare has a network capacity of 30 Tbps, which is 15 times greater than the greatest DDoS attack. Cloudflare is impervious to even the most potent attacks because of its high capacity. The software employs an IP reputation database to block new attacks across 20 million different attributes to stay up to date with unknown attack vectors.


  • A variety of edge locations guarantees the continued availability of your content.
  • Many bundles.
  • The base model is cost-free.


AppTrana is a tool that works to prevent DDoS attacks by identifying malicious traffic and blocking it before it reaches your servers. This reduces the impact of DDoS attacks on your business and helps ensure that your customers have uninterrupted service.


  • Risk Assessment
  • Real-Time Reporting & Dashboards
  • Vulnerability Protection
  • Threat Protection
  • Threat Intelligence
  • Vulnerability Assessment
  • Vulnerability Management
  • Bandwidth Monitoring


One of the greatest methods for conducting DDOS attacks is Slowloris. It is even referred to as the most efficient tool available. It operates by making valid, albeit inefficient, HTTP queries. In this approach, the server becomes overloaded with requests due to the limited bandwidth. Additionally, this tool allows attackers to connect to the victim server and maintain those connections as long as they are required. 


  • Does not affect the extra ports or services on the target network.
  • Only HTTP communication that has been approved is sent to the server.
  • It does this by sending a request that is only partially completed.
  • This assault seeks to keep as many connections with those already open as possible.
  • As long as the server keeps the fake connection active, the connection pool will be overwhelmed and unable to handle requests for the real links.
  • As long as possible, the links remain active.


RUDY is a DDoS protection service that offers protection against DDoS attacks and intrusion detection. The main idea behind this project is to protect online services against DDoS attacks by using a distributed network of nodes located in different parts of the world.


  • The interactive menu on a console.
  • It indicates the form fields for entering data. Then slowly injects the large content length data into this form.
  • About the POST-based DDoS assault, you can choose the forms from the URL.


DDOSIM is a shorthand for DDoS Simulator. This software uses a DDoS attack simulation. The network and the website are both open to attack. Its strength is assessed based on how the server security mechanism handled this assault. The utility is built in C++ and performs best on LINUX, despite being modified to work on other operating systems. It operates in a way that it executes many attack techniques to demonstrate the variety of approaches and the breadth of a hacker’s cognitive process.


  • To assault the server, it multiplies numerous zombie hosts.
  • With the server, these hosts establish a complete TCP connection.
  • It can launch a legitimate HTTP DDoS assault.
  • DDoS attacks employing erroneous requests are possible.
  • The application layer may be attacked.

Akamai Prolexic Routed

A managed DDoS security technology is Akamai Prolexic Routed. The tool has zero-second mitigation, which can assist in addressing vulnerabilities as soon as they are discovered. They also have a fantastic, around-the-clock Security Operations Center that you may get in touch with if you need more in-depth assistance in the event of an attack.

Additionally, the program offers network traffic monitoring, which is quite helpful in spotting attacks early on. Real-time access to all of your traffic statistics is available. In addition, it has 19 distinct scrubbing centers built up around the world and an 8 Tbps bandwidth.


  • Absorbing DDoS capabilities
  • gives you cutting-edge information when an assault occurs to assist you in enhancing your security in the future.
  • automatically reduces attack surfaces just before an attack occurs
  • hybrid cloud defense
  • blocks out a wide range of DDoS attack types

AWS Shield

AWS Shield is a DDoS attack prevention service for AWS CloudFront, Elastic Beanstalk, AppStream 2.0, and WAF. The service protects against volumetric, protocol-based, and application-layer attacks that can disrupt the availability of your web applications and services.

AWS Shield also provides access control lists (ACLs) for Amazon Simple Storage Service (Amazon S3) buckets and Amazon ElastiCache clusters when you enable it to protect those resources.


  • Prioritizing traffic and filtering packets
  • Access to AWS Shield is available from within other AWS products.
  • Flow analysis of data


For businesses, DDoS attacks are a costly nuisance. They disrupt business and put current customers at risk of never returning while taking an unbearably long time to recover each time an attack occurs. There’s no way to prevent these kinds of incidents entirely, but there are tools you can use that will help reduce the chance of one occurring.

Related articles: